$av_failed variable set when av_scanner deferred
[exim.git] / doc / doc-txt / ChangeLog
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1Change log file for Exim from version 4.21
2-------------------------------------------
3
867fcbf5
PP
4Exim version 4.77
5-----------------
6
7PP/01 Solaris build fix for Oracle's LDAP libraries.
8 Bugzilla 1109, patch from Stephen Usher.
9
f1a29782
TF
10TF/01 HP/UX build fix: avoid arithmetic on a void pointer.
11
ab42bd23
TK
12TK/01 DKIM Verification: Fix relaxed canon for empty headers w/o
13 whitespace trailer
867fcbf5 14
0ca0cf52
TF
15TF/02 Fix a couple more cases where we did not log the error message
16 when unlink() failed. See also change 4.74-TF/03.
17
921b12ca
TF
18TF/03 Make the exiwhat support code safe for signals. Previously Exim might
19 lock up or crash if it happened to be inside a call to libc when it
20 got a SIGUSR1 from exiwhat.
21
22 The SIGUSR1 handler appends the current process status to the process
23 log which is later printed by exiwhat. It used to use the general
24 purpose logging code to do this, but several functions it calls are
25 not safe for signals.
26
27 The new output code in the SIGUSR1 handler is specific to the process
28 log, and simple enough that it's easy to inspect for signal safety.
29 Removing some special cases also simplifies the general logging code.
30 Removing the spurious timestamps from the process log simplifies
31 exiwhat.
32
c99ce5c9
TF
33TF/04 Improved ratelimit ACL condition.
34
35 The /noupdate option has been deprecated in favour of /readonly which
36 has clearer semantics. The /leaky, /strict, and /readonly update modes
37 are mutually exclusive. The update mode is no longer included in the
38 database key; it just determines when the database is updated. (This
39 means that when you upgrde Exim will forget old rate measurements.)
40
41 Exim now checks that the per_* options are used with an update mode that
42 makes sense for the current ACL. For example, when Exim is processing a
43 message (e.g. acl_smtp_rcpt or acl_smtp_data, etc.) you can specify
44 per_mail/leaky or per_mail/strict; otherwise (e.g. in acl_smtp_helo) you
45 must specify per_mail/readonly. If you omit the update mode it defaults to
46 /leaky where that makes sense (as before) or /readonly where required.
47
48 The /noupdate option is now undocumented but still supported for
49 backwards compatibility. It is equivalent to /readonly except that in
50 ACLs where /readonly is required you may specify /leaky/noupdate or
51 /strict/noupdate which are treated the same as /readonly.
52
53 A useful new feature is the /count= option. This is a generalization
54 of the per_byte option, so that you can measure the throughput of other
55 aggregate values. For example, the per_byte option is now equivalent
56 to per_mail/count=${if >{0}{$message_size} {0} {$message_size} }.
57
58 The per_rcpt option has been generalized using the /count= mechanism
59 (though it's more complicated than the per_byte equivalence). When it is
60 used in acl_smtp_rcpt, the per_rcpt option adds recipients to the
61 measured rate one at a time; if it is used later (e.g. in acl_smtp_data)
62 or in a non-SMTP ACL it adds all the recipients in one go. (The latter
63 /count=$recipients_count behaviour used to work only in non-SMTP ACLs.)
64 Note that using per_rcpt with a non-readonly update mode in more than
65 one ACL will cause the recipients to be double-counted. (The per_mail
66 and per_byte options don't have this problem.)
67
68 The handling of very low rates has changed slightly. If the computed rate
69 is less than the event's count (usually one) then this event is the first
70 after a long gap. In this case the rate is set to the same as this event's
71 count, so that the first message of a spam run is counted properly.
72
73 The major new feature is a mechanism for counting the rate of unique
74 events. The new per_addr option counts the number of different
75 recipients that someone has sent messages to in the last time period. It
76 behaves like per_rcpt if all the recipient addresses are different, but
77 duplicate recipient addresses do not increase the measured rate. Like
78 the /count= option this is a general mechanism, so the per_addr option
79 is equivalent to per_rcpt/unique=$local_part@$domain. You can, for
80 example, measure the rate that a client uses different sender addresses
81 with the options per_mail/unique=$sender_address. There are further
82 details in the main documentation.
83
3634fc25
TF
84TF/05 Removed obsolete $Cambridge$ CVS revision strings.
85
792e8a19
TF
86TF/06 Removed a few PCRE remnants.
87
5901f0ab
TF
88TF/07 Automatically extract Exim's version number from tags in the git
89 repository when doing development or release builds.
90
e2ca7082
PP
91PP/02 Raise smtp_cmd_buffer_size to 16kB. Patch from Paul Fisher.
92 Bugzilla 879.
93
061b7ebd
PP
94PP/03 Implement SSL-on-connect outbound with protocol=smtps on smtp transport.
95 Heavily based on revision 40f9a89a from Simon Arlott's tree.
96 Bugzilla 97.
97
e12f8c32
PP
98PP/04 Use .dylib instead of .so for dynamic library loading on MacOS.
99
9e949f00
PP
100PP/05 Variable $av_failed, true if the AV scanner deferred.
101 Patch from John Horne.
102 Bugzilla 1078.
103
0ca0cf52 104
10906672
PP
105Exim version 4.76
106-----------------
107
108PP/01 The new ldap_require_cert option would segfault if used. Fixed.
109
754a0503
PP
110PP/02 Harmonised TLS library version reporting; only show if debugging.
111 Layout now matches that introduced for other libraries in 4.74 PP/03.
112
c0c7b2da
PP
113PP/03 New openssl_options items: no_sslv2 no_sslv3 no_ticket no_tlsv1
114
e97d1f08
PP
115PP/04 New "dns_use_edns0" global option.
116
084c1d8c
PP
117PP/05 Don't segfault on misconfiguration of ref:name exim-user as uid.
118 Bugzilla 1098.
119
4e7ee012
PP
120PP/06 Extra paranoia around buffer usage at the STARTTLS transition.
121 nb: Exim is not vulnerable to http://www.kb.cert.org/vuls/id/555316
da80c2a8 122
c8d52a00
PP
123TK/01 Updated PolarSSL code to 0.14.2.
124 Bugzilla 1097. Patch from Andreas Metzler.
125
54e7ce4a
PP
126PP/07 Catch divide-by-zero in ${eval:...}.
127 Fixes bugzilla 1102.
128
5ee6f336
PP
129PP/08 Condition negation of bool{}/bool_lax{} did not negate. Fixed.
130 Bugzilla 1104.
131
c8d52a00 132TK/02 Bugzilla 1106: CVE-2011-1764 - DKIM log line was subject to a
6ea4a851
PP
133 format-string attack -- SECURITY: remote arbitrary code execution.
134
135TK/03 SECURITY - DKIM signature header parsing was double-expanded, second
136 time unintentionally subject to list matching rules, letting the header
137 cause arbitrary Exim lookups (of items which can occur in lists, *not*
138 arbitrary string expansion). This allowed for information disclosure.
139
140PP/09 Fix another SIGFPE (x86) in ${eval:...} expansion, this time related to
141 INT_MIN/-1 -- value coerced to INT_MAX.
c8d52a00 142
10906672 143
aa097c4c
NM
144Exim version 4.75
145-----------------
146
4c9ef03a 147NM/01 Workround for PCRE version dependency in version reporting
aa097c4c
NM
148 Bugzilla 1073
149
7f3d9eff
TF
150TF/01 Update valgrind.h and memcheck.h to copies from valgrind-3.6.0.
151 This fixes portability to compilers other than gcc, notably
152 Solaris CC and HP-UX CC. Fixes Bugzilla 1050.
153
159f52d2
TF
154TF/02 Bugzilla 139: Avoid using the += operator in the modular lookup
155 makefiles for portability to HP-UX and POSIX correctness.
156
0cc9542a
PP
157PP/01 Permit LOOKUP_foo enabling on the make command-line.
158 Also via indented variable definition in the Makefile.
159 (Debugging by Oliver Heesakkers).
160
f7274286
PP
161PP/02 Restore caching of spamd results with expanded spamd_address.
162 Patch from author of expandable spamd_address patch, Wolfgang Breyha.
163
7b797365
PP
164PP/03 Build issue: lookups-Makefile now exports LC_ALL=C
165 Improves build reliability. Fix from: Frank Elsner
166
caacae52
NM
167NM/02 Fix wide character breakage in the rfc2047 coding
168 Fixes bug 1064. Patch from Andrey N. Oktyabrski
169
09dcaba9
NM
170NM/03 Allow underscore in dnslist lookups
171 Fixes bug 1026. Patch from Graeme Fowler
172
bc19a55b
PP
173PP/04 Bugzilla 230: Support TLS-enabled LDAP (in addition to ldaps).
174 Code patches from Adam Ciarcinski of NetBSD.
caacae52 175
bd4c9759
NM
176NM/04 Fixed exiqgrep to cope with mailq missing size issue
177 Fixes bug 943.
178
b72aab72
PP
179PP/05 Bugzilla 1083: when lookup expansion defers, escape the output which
180 is logged, to avoid truncation. Patch from John Horne.
181
2fe76745
PP
182PP/06 Bugzilla 1042: implement freeze_signal on pipe transports.
183 Patch from Jakob Hirsch.
184
76aa570c
PP
185PP/07 Bugzilla 1061: restrict error messages sent over SMTP to not reveal
186 SQL string expansion failure details.
187 Patch from Andrey Oktyabrski.
188
f1e5fef5
PP
189PP/08 Bugzilla 486: implement %M datestamping in log filenames.
190 Patch from Simon Arlott.
191
4d805ee9
PP
192PP/09 New lookups functionality failed to compile on old gcc which rejects
193 extern declarations in function scope.
194 Patch from Oliver Fleischmann
195
cd59ab18
PP
196PP/10 Use sig_atomic_t for flags set from signal handlers.
197 Check getgroups() return and improve debugging.
198 Fixed developed for diagnosis in bug 927 (which turned out to be
199 a kernel bug).
200
332f5cf3
PP
201PP/11 Bugzilla 1055: Update $message_linecount for maildir_tag.
202 Patch from Mark Zealey.
203
29cfeb94
PP
204PP/12 Bugzilla 1056: Improved spamd server selection.
205 Patch from Mark Zealey.
206
660242ad
PP
207PP/13 Bugzilla 1086: Deal with maildir quota file races.
208 Based on patch from Heiko Schlittermann.
209
bc4bc4c5
PP
210PP/14 Bugzilla 1019: DKIM multiple signature generation fix.
211 Patch from Uwe Doering, sign-off by Michael Haardt.
212
2e64baa9
NM
213NM/05 Fix to spam.c to accommodate older gcc versions which dislike
214 variable declaration deep within a block. Bug and patch from
215 Dennis Davis.
216
bddd7526
PP
217PP/15 lookups-Makefile IRIX compatibilty coercion.
218
6bac1a9a
PP
219PP/16 Make DISABLE_DKIM build knob functional.
220
552193f0
NM
221NM/06 Bugzilla 968: child_open_uid: restore default SIGPIPE handler
222 Patch by Simon Arlott
baeee2c1 223
1b587e48
TF
224TF/03 Fix valgrind.h portability to C89 compilers that do not support
225 variable argument macros. Our copy now differs from upstream.
226
aa097c4c 227
8c07b69f
TF
228Exim version 4.74
229-----------------
230
231TF/01 Failure to get a lock on a hints database can have serious
232 consequences so log it to the panic log.
233
c0ea85ab
TF
234TF/02 Log LMTP confirmation messages in the same way as SMTP,
235 controlled using the smtp_confirmation log selector.
236
0761d44e
TF
237TF/03 Include the error message when we fail to unlink a spool file.
238
0a349494
PP
239DW/01 Bugzilla 139: Support dynamically loaded lookups as modules.
240 With thanks to Steve Haslam, Johannes Berg & Serge Demonchaux
241 for maintaining out-of-tree patches for some time.
242
243PP/01 Bugzilla 139: Documentation and portability issues.
244 Avoid GNU Makefile-isms, let Exim continue to build on BSD.
245 Handle per-OS dynamic-module compilation flags.
246
fea24b2e
PP
247PP/02 Let /dev/null have normal permissions.
248 The 4.73 fixes were a little too stringent and complained about the
249 permissions on /dev/null. Exempt it from some checks.
250 Reported by Andreas M. Kirchwitz.
251
6545de78
PP
252PP/03 Report version information for many libraries, including
253 Exim version information for dynamically loaded libraries. Created
254 version.h, now support a version extension string for distributors
255 who patch heavily. Dynamic module ABI change.
256
1670ef10
PP
257PP/04 CVE-2011-0017 - check return value of setuid/setgid. This is a
258 privilege escalation vulnerability whereby the Exim run-time user
259 can cause root to append content of the attacker's choosing to
260 arbitrary files.
261
c0886197
PP
262PP/05 Bugzilla 1041: merged DCC maintainer's fixes for return code.
263 (Wolfgang Breyha)
264
b7487bce
PP
265PP/06 Bugzilla 1071: fix delivery logging with untrusted macros.
266 If dropping privileges for untrusted macros, we disabled normal logging
267 on the basis that it would fail; for the Exim run-time user, this is not
268 the case, and it resulted in successful deliveries going unlogged.
269 Fixed. Reported by Andreas Metzler.
270
8c07b69f 271
97fd1e48 272Exim version 4.73
ed7f7860 273-----------------
97fd1e48
PP
274
275PP/01 Date: & Message-Id: revert to normally being appended to a message,
276 only prepend for the Resent-* case. Fixes regression introduced in
277 Exim 4.70 by NM/22 for Bugzilla 607.
278
6901c596
PP
279PP/02 Include check_rfc2047_length in configure.default because we're seeing
280 increasing numbers of administrators be bitten by this.
281
a8c8d6b5
JJ
282JJ/01 Added DISABLE_DKIM and comment to src/EDITME
283
77bb000f
PP
284PP/03 Bugzilla 994: added openssl_options main configuration option.
285
a29e5231
PP
286PP/04 Bugzilla 995: provide better SSL diagnostics on failed reads.
287
ec5a0394 288PP/05 Bugzilla 834: provide a permit_coredump option for pipe transports.
a29e5231 289
55c75993
PP
290PP/06 Adjust NTLM authentication to handle SASL Initial Response.
291
453a6645 292PP/07 If TLS negotiated an anonymous cipher, we could end up with SSL but
ec5a0394
PP
293 without a peer certificate, leading to a segfault because of an
294 assumption that peers always have certificates. Be a little more
453a6645
PP
295 paranoid. Problem reported by Martin Tscholak.
296
8544e77a
PP
297PP/08 Bugzilla 926: switch ClamAV to use the new zINSTREAM API for content
298 filtering; old API available if built with WITH_OLD_CLAMAV_STREAM=yes
299 NB: ClamAV planning to remove STREAM in "middle of 2010".
3346ab01
PP
300 CL also introduces -bmalware, various -d+acl logging additions and
301 more caution in buffer sizes.
8544e77a 302
83e029d5
PP
303PP/09 Implemented reverse_ip expansion operator.
304
ed7f7860
PP
305PP/10 Bugzilla 937: provide a "debug" ACL control.
306
7d9f747b
PP
307PP/11 Bugzilla 922: Documentation dusting, patch provided by John Horne.
308
4b2241d2
PP
309PP/12 Bugzilla 973: Implement --version.
310
10385c15
PP
311PP/13 Bugzilla 752: Refuse to build/run if Exim user is root/0.
312
dbc4b90d
PP
313PP/14 Build without WITH_CONTENT_SCAN. Path from Andreas Metzler.
314
532be449
PP
315PP/15 Bugzilla 816: support multiple condition rules on Routers.
316
6a8de854 317PP/16 Add bool_lax{} expansion operator and use that for combining multiple
71265ae9
PP
318 condition rules, instead of bool{}. Make both bool{} and bool_lax{}
319 ignore trailing whitespace.
6a8de854 320
5dc43717
JJ
321JJ/02 prevent non-panic DKIM error from being sent to paniclog
322
323JJ/03 added tcp_wrappers_daemon_name to allow host entries other than
324 "exim" to be used
55c75993 325
3346ab01
PP
326PP/17 Fix malware regression for cmdline scanner introduced in PP/08.
327 Notification from Dr Andrew Aitchison.
328
491fab4c
PP
329PP/18 Change ClamAV response parsing to be more robust and to handle ClamAV's
330 ExtendedDetectionInfo response format.
331 Notification from John Horne.
332
13eb9497
PP
333PP/19 OpenSSL 1.0.0a compatibility const-ness change, should be backwards
334 compatible.
335
336PP/20 Added a CONTRIBUTING file. Fixed the documentation build to use http:
337 XSL and documented dependency on system catalogs, with examples of how
338 it normally works.
339
7f36d675
DW
340DW/21 Added Valgrind hooks in store.c to help it capture out-of-bounds store
341 access.
342
c1d94452
DW
343DW/22 Bugzilla 1044: CVE-2010-4345 - partial fix: restrict default behaviour
344 of CONFIGURE_OWNER and CONFIGURE_GROUP options to no longer allow a
345 configuration file which is writeable by the Exim user or group.
346
e2f5dc15
DW
347DW/23 Bugzilla 1044: CVE-2010-4345 - part two: extend checks for writeability
348 of configuration files to cover files specified with the -C option if
349 they are going to be used with root privileges, not just the default
350 configuration file.
351
cd25e41d
DW
352DW/24 Bugzilla 1044: CVE-2010-4345 - part three: remove ALT_CONFIG_ROOT_ONLY
353 option (effectively making it always true).
354
261dc43e
DW
355DW/25 Add TRUSTED_CONFIG_PREFIX_FILE option to allow alternative configuration
356 files to be used while preserving root privileges.
357
fa32850b
DW
358DW/26 Set FD_CLOEXEC on SMTP sockets after forking in the daemon, to ensure
359 that rogue child processes cannot use them.
360
79d4bc3d
PP
361PP/27 Bugzilla 1047: change the default for system_filter_user to be the Exim
362 run-time user, instead of root.
363
43236f35 364PP/28 Add WHITELIST_D_MACROS option to let some macros be overridden by the
2cfd3221
PP
365 Exim run-time user without dropping privileges.
366
fb08281f
DW
367DW/29 Remove use of va_copy() which breaks pre-C99 systems. Duplicate the
368 result string, instead of calling string_vformat() twice with the same
369 arguments.
3346ab01 370
74935b98
DW
371DW/30 Allow TRUSTED_CONFIG_PREFIX_FILE only for Exim or CONFIGURE_OWNER, not
372 for other users. Others should always drop root privileges if they use
373 -C on the command line, even for a whitelisted configure file.
374
90b6341f
DW
375DW/31 Turn TRUSTED_CONFIG_PREFIX_FILE into TRUSTED_CONFIG_FILE. No prefixes.
376
57730b52
ML
377NM/01 Fixed bug #1002 - Message loss when using multiple deliveries
378
66581d1e 379
465e92cf
JJ
380Exim version 4.72
381-----------------
382
453a6645
PP
383JJ/01 installed exipick 20100104.1, adding $max_received_linelength,
384 $data_path, and $header_path variables; fixed documentation bugs and
385 typos
465e92cf 386
453a6645
PP
387JJ/02 installed exipick 20100222.0, added --input-dir and --finput to allow
388 exipick to access non-standard spools, including the "frozen" queue
389 (Finput)
edae0343 390
9bd3e22c
NM
391NM/01 Bugzilla 965: Support mysql stored procedures.
392 Patch from Alain Williams
393
bb576ff7
NM
394NM/02 Bugzilla 961: Spacing fix (syntax error) on Makefile directives for NetBSD
395
5a1a5845
NM
396NM/03 Bugzilla 955: Documentation fix for max_rcpts.
397 Patch from Andreas Metzler
398
981a9fad
NM
399NM/04 Bugzilla 954: Fix for unknown responses from Dovecot authenticator.
400 Patch from Kirill Miazine
401
7fc497ee
NM
402NM/05 Bugzilla 671: Added umask to procmail example.
403
1a41defa
JJ
404JJ/03 installed exipick 20100323.0, fixing doc bug
405
a466095c 406NM/06 Bugzilla 988: CVE-2010-2023 - prevent hardlink attack on sticky mail
b26eacf1 407 directory. Notification and patch from Dan Rosenberg.
a466095c 408
94a6bd0b
NM
409TK/01 PDKIM: Upgrade PolarSSL files to upstream version 0.12.1.
410
411TK/02 Improve log output when DKIM signing operation fails.
412
413MH/01 Treat the transport option dkim_domain as a colon separated
414 list, not as a single string, and sign the message with each element,
415 omitting multiple occurences of the same signer.
416
c1b141a8
NM
417NM/07 Null terminate DKIM strings, Null initialise DKIM variable
418 Bugzilla 985, 986. Patch by Simon Arlott
94a6bd0b 419
b26eacf1 420NM/08 Bugzilla 967. dnsdb DNS TXT record bug fix (DKIM-related)
0d0c6357
NM
421 Patch by Simon Arlott
422
179c5980 423PP/01 Bugzilla 989: CVE-2010-2024 - work round race condition on
b26eacf1 424 MBX locking. Notification from Dan Rosenberg.
179c5980 425
9bd3e22c 426
7c6d71af
NM
427Exim version 4.71
428-----------------
429
7d9f747b 430TK/01 Bugzilla 912: Fix DKIM segfault on empty headers/body.
7c6d71af 431
f013fb92
NM
432NM/01 Bugzilla 913: Documentation fix for gnutls_* options.
433
0eb8eedd
NM
434NM/02 Bugzilla 722: Documentation for randint. Better randomness defaults.
435
663ee6d9
NM
436NM/03 Bugzilla 847: Enable DNSDB lookup by default.
437
177ebd9b
NM
438NM/04 Bugzilla 915: Flag broken perl installation during build.
439
7c6d71af 440
210f147e
NM
441Exim version 4.70
442-----------------
443
cdd3bb85 444TK/01 Added patch by Johannes Berg that expands the main option
e739e3d9 445 "spamd_address" if it starts with a dollar sign.
cdd3bb85
TK
446
447TK/02 Write list of recipients to X-Envelope-Sender header when building
448 the mbox-format spool file for content scanning (suggested by Jakob
7d9f747b 449 Hirsch).
cdd3bb85
TK
450
451TK/03 Added patch by Wolfgang Breyha that adds experimental DCC
452 (http://www.dcc-servers.net/) support via dccifd. Activated by
e739e3d9 453 setting EXPERIMENTAL_DCC=yes in Local/Makefile.
cdd3bb85
TK
454
455TK/04 Bugzilla 673: Add f-protd malware scanner support. Patch submitted
456 by Mark Daniel Reidel <mr@df.eu>.
457
210f147e
NM
458NM/01 Bugzilla 657: Embedded PCRE removed from the exim source tree.
459 When building exim an external PCRE library is now needed -
460 PCRE is a system library on the majority of modern systems.
461 See entry on PCRE_LIBS in EDITME file.
462
deafd5b3
NM
463NM/02 Bugzilla 646: Removed unwanted C/R in Dovecot authenticator
464 conversation. Added nologin parameter to request.
7d9f747b 465 Patch contributed by Kirill Miazine.
deafd5b3 466
089793a4
TF
467TF/01 Do not log submission mode rewrites if they do not change the address.
468
5f16ca82
TF
469TF/02 Bugzilla 662: Fix stack corruption before exec() in daemon.c.
470
dae9d94e 471NM/03 Bugzilla 602: exicyclog now handles panic log, and creates empty
7d9f747b 472 log files in place. Contributed by Roberto Lima.
dae9d94e 473
7d9f747b 474NM/04 Bugzilla 667: Close socket used by dovecot authenticator.
3f0da4d0 475
06864c44
TF
476TF/03 Bugzilla 615: When checking the local_parts router precondition
477 after a local_part_suffix or local_part_prefix option, Exim now
478 does not use the address's named list lookup cache, since this
479 contains cached lookups for the whole local part.
480
65a7d8c3 481NM/05 Bugzilla 521: Integrated SPF Best Guess support contributed by
7d9f747b 482 Robert Millan. Documentation is in experimental-spec.txt.
65a7d8c3 483
23510047 484TF/04 Bugzilla 668: Fix parallel build (make -j).
65a7d8c3 485
7d9f747b 486NM/05.2 Bugzilla 437: Prevent Maildir aux files being created with mode 000.
5f28a6e8 487
7d8eec3a 488NM/05.3 Bugzilla 598: Improvement to Dovecot authenticator handling.
7d9f747b 489 Patch provided by Jan Srzednicki.
6c588e74 490
89dec7b6
TF
491TF/05 Leading white space used to be stripped from $spam_report which
492 wrecked the formatting. Now it is preserved.
5f28a6e8 493
a99de90c
TF
494TF/06 Save $spam_score, $spam_bar, and $spam_report in spool files, so
495 that they are available at delivery time.
496
e2803e40
TF
497TF/07 Fix the way ${extract is skipped in the untaken branch of a conditional.
498
7199e1ee
TF
499TF/08 TLS error reporting now respects the incoming_interface and
500 incoming_port log selectors.
501
e276e04b
TF
502TF/09 Produce a more useful error message if an SMTP transport's hosts
503 setting expands to an empty string.
504
ce552449 505NM/06 Bugzilla 744: EXPN did not work under TLS.
7d9f747b 506 Patch provided by Phil Pennock.
ce552449 507
e765a0f1 508NM/07 Bugzilla 769: Extraneous comma in usage fprintf
7d9f747b 509 Patch provided by Richard Godbee.
e765a0f1 510
4f054c63 511NM/08 Fixed erroneous documentation references to smtp_notquit_acl to be
447de4b0 512 acl_smtp_notquit, added index entry.
4f054c63 513
7d9f747b
PP
514NM/09 Bugzilla 787: Potential buffer overflow in string_format.
515 Patch provided by Eugene Bujak.
24c929a2 516
7d9f747b
PP
517NM/10 Bugzilla 770: Problem on some platforms modifying the len parameter to
518 accept(). Patch provided by Maxim Dounin.
cf73943b 519
b52bc06e 520NM/11 Bugzilla 749: Preserve old behaviour of blanks comparing equal to zero.
7d9f747b 521 Patch provided by Phil Pennock.
b52bc06e 522
447de4b0
NM
523NM/12 Bugzilla 497: Correct behaviour of exiwhat when no config exists.
524
4c69d561 525NM/13 Bugzilla 590: Correct handling of Resent-Date headers.
7d9f747b 526 Patch provided by Brad "anomie" Jorsch.
4c69d561 527
d5c39246 528NM/14 Bugzilla 622: Added timeout setting to transport filter.
7d9f747b 529 Patch provided by Dean Brooks.
9b989985 530
0b23848a
TK
531TK/05 Add native DKIM support (does not depend on external libraries).
532
8f3414a1 533NM/15 Bugzilla 854: Removed code that symlinks to pcre as its no longer useful.
7d9f747b 534 Patch provided by Graeme Fowler.
e2aacdfd 535
fb6f955d
NM
536NM/16 Bugzilla 851: Documentation example syntax fix.
537
538NM/17 Changed NOTICE file to remove references to embedded PCRE.
8f3414a1 539
7d9f747b
PP
540NM/18 Bugzilla 894: Fix issue with very long lines including comments in
541 lsearch.
dbb0bf41 542
7d9f747b
PP
543NM/19 Bugzilla 745: TLS version reporting.
544 Patch provided by Phil Pennock.
f3766eb5 545
7d9f747b
PP
546NM/20 Bugzilla 167: bool: condition support.
547 Patch provided by Phil Pennock.
36f12725 548
7d9f747b
PP
549NM/21 Bugzilla 665: gnutls_compat_mode to allow compatibility with broken
550 clients. Patch provided by Phil Pennock.
e6060e2c 551
7d9f747b
PP
552NM/22 Bugzilla 607: prepend (not append) Resent-Message-ID and Resent-Date.
553 Patch provided by Brad "anomie" Jorsch.
5eb690a1 554
7d9f747b
PP
555NM/23 Bugzilla 687: Fix misparses in eximstats.
556 Patch provided by Heiko Schlittermann.
d5c13d66 557
7d9f747b
PP
558NM/24 Bugzilla 688: Fix exiwhat to handle log_selector = +pid.
559 Patch provided by Heiko Schlittermann.
b2335c0b 560
7d9f747b 561NM/25 Bugzilla 727: Use transport mode as default mode for maildirsize file.
1da77999 562 plus update to original patch.
f4cd9433 563
7d9f747b 564NM/26 Bugzilla 799: Documentation correction for ratelimit.
dc988b7e 565
7d9f747b
PP
566NM/27 Bugzilla 802: Improvements to local interface IP addr detection.
567 Patch provided by David Brownlee.
8dc71ab3 568
7d9f747b 569NM/28 Bugzilla 807: Improvements to LMTP delivery logging.
400eda43 570
7d9f747b 571NM/29 Bugzilla 862, 866, 875: Documentation bugfixes.
ec5a421b 572
7d9f747b 573NM/30 Bugzilla 888: TLS documentation bugfixes.
07af267e 574
7d9f747b 575NM/31 Bugzilla 896: Dovecot buffer overrun fix.
51473862 576
17792b53 577NM/32 Bugzilla 889: Change all instances of "expr" in shell scripts to "expr --"
7d9f747b 578 Unlike the original bugzilla I have changed all shell scripts in src tree.
17792b53 579
7d9f747b
PP
580NM/33 Bugzilla 898: Transport filter timeout fix.
581 Patch by Todd Rinaldo.
52383f8f 582
7d9f747b
PP
583NM/34 Bugzilla 901: Fix sign/unsigned and UTF mistmatches.
584 Patch by Serge Demonchaux.
5ca6d115 585
7d9f747b
PP
586NM/35 Bugzilla 39: Base64 decode bug fixes.
587 Patch by Jakob Hirsch.
baee9eee 588
7d9f747b 589NM/36 Bugzilla 909: Correct connect() call in dcc code.
e93a964c 590
7d9f747b 591NM/37 Bugzilla 910: Correct issue with relaxed/simple handling.
9bf3d68f 592
7d9f747b 593NM/38 Bugzilla 908: Removed NetBSD3 support as no longer needed.
96535b98 594
7d9f747b 595NM/39 Bugzilla 911: Fixed MakeLinks build script.
30339e0f 596
deafd5b3 597
47db1125
NM
598Exim version 4.69
599-----------------
600
4b3504d0
TK
601TK/01 Add preliminary DKIM support. Currently requires a forked version of
602 ALT-N's libdkim that I have put here:
603 http://duncanthrax.net/exim-experimental/
604
605 Note to Michael Haardt: I had to rename some vars in sieve.c. They
606 were called 'true' and it seems that C99 defines that as a reserved
607 keyword to be used with 'bool' variable types. That means you could
608 not include C99-style headers which use bools without triggering
609 build errors in sieve.c.
610
81ea09ca
NM
611NM/01 Bugzilla 592: --help option is handled incorrectly if exim is invoked
612 as mailq or other aliases. Changed the --help handling significantly
613 to do whats expected. exim_usage() emits usage/help information.
614
f13cddcb
SC
615SC/01 Added the -bylocaldomain option to eximstats.
616
7d9f747b 617NM/02 Bugzilla 619: Defended against bad data coming back from gethostbyaddr.
8ad076b2 618
7d9f747b 619NM/03 Bugzilla 613: Documentation fix for acl_not_smtp.
a843aaa6 620
7d9f747b 621NM/04 Bugzilla 628: PCRE update to 7.4 (work done by John Hall).
47db1125
NM
622
623
eb4c0de6
PH
624Exim version 4.68
625-----------------
626
627PH/01 Another patch from the Sieve maintainer.
628
6a3bceb1
PH
629PH/02 When an IPv6 address is converted to a string for single-key lookup
630 in an address list (e.g. for an item such as "net24-dbm;/net/works"),
631 dots are used instead of colons so that keys in lsearch files need not
632 contain colons. This was done some time before quoting was made available
633 in lsearch files. However, iplsearch files do require colons in IPv6 keys
634 (notated using the quote facility) so as to distinguish them from IPv4
635 keys. This meant that lookups for IP addresses in host lists did not work
636 for iplsearch lookups.
637
638 This has been fixed by arranging for IPv6 addresses to be expressed with
639 colons if the lookup type is iplsearch. This is not incompatible, because
640 previously such lookups could never work.
641
642 The situation is now rather anomolous, since one *can* have colons in
643 ordinary lsearch keys. However, making the change in all cases is
644 incompatible and would probably break a number of configurations.
645
2e30fa9d
TK
646TK/01 Change PRVS address formatting scheme to reflect latests BATV draft
647 version.
648
0806a9c5
MH
649MH/01 The "spam" ACL condition code contained a sscanf() call with a %s
650 conversion specification without a maximum field width, thereby enabling
651 a rogue spamd server to cause a buffer overflow. While nobody in their
652 right mind would setup Exim to query an untrusted spamd server, an
653 attacker that gains access to a server running spamd could potentially
654 exploit this vulnerability to run arbitrary code as the Exim user.
655
ae276964
TK
656TK/02 Bugzilla 502: Apply patch to make the SPF-Received: header use
657 $primary_hostname instead of what libspf2 thinks the hosts name is.
658
0f2cbd1b
MH
659MH/02 The dsearch lookup now uses lstat(2) instead of stat(2) to look for
660 a directory entry by the name of the lookup key. Previously, if a
661 symlink pointed to a non-existing file or a file in a directory that
662 Exim lacked permissions to read, a lookup for a key matching that
663 symlink would fail. Now it is enough that a matching directory entry
664 exists, symlink or not. (Bugzilla 503.)
665
2b85bce7
PH
666PH/03 The body_linecount and body_zerocount variables are now exported in the
667 local_scan API.
668
93655c46
PH
669PH/04 Added the $dnslist_matched variable.
670
6c512171
PH
671PH/05 Unset $tls_cipher and $tls_peerdn before making a connection as a client.
672 This means they are set thereafter only if the connection becomes
673 encrypted.
674
675PH/06 Added the client_condition to authenticators so that some can be skipped
676 by clients under certain conditions.
677
aa6dc513
PH
678PH/07 The error message for a badly-placed control=no_multiline_responses left
679 "_responses" off the end of the name.
680
a96603a0
PH
681PH/08 Added -Mvc to output a copy of a message in RFC 2822 format.
682
8f240103
PH
683PH/09 Tidied the code for creating ratelimiting keys, creating them explicitly
684 (without spaces) instead of just copying the configuration text.
685
686PH/10 Added the /noupdate option to the ratelimit ACL condition.
687
d677b2f2
PH
688PH/11 Added $max_received_linelength.
689
d52120f2
PH
690PH/12 Added +ignore_defer and +include_defer to host lists.
691
64f2600a
PH
692PH/13 Installed PCRE version 7.2. This needed some changes because of the new
693 way in which PCRE > 7.0 is built.
694
8669f003
PH
695PH/14 Implemented queue_only_load_latch.
696
a4dc33a8
PH
697PH/15 Removed an incorrect (int) cast when reading the value of SIZE in a
698 MAIL command. The effect was to mangle the value on 64-bit systems.
699
d6a60c0f
PH
700PH/16 Another patch from the Sieve maintainer.
701
8f128379
PH
702PH/17 Added the NOTQUIT ACL, based on a patch from Ted Cooper.
703
8932dffe
PH
704PH/18 If a system quota error occurred while trying to create the file for
705 a maildir delivery, the message "Mailbox is full" was not appended to the
706 bounce if the delivery eventually timed out. Change 4.67/27 below applied
707 only to a quota excession during the actual writing of the file.
d6a60c0f 708
ddea74fa 709PH/19 It seems that peer DN values may contain newlines (and other non-printing
48ed62d9
PH
710 characters?) which causes problems in log lines. The DN values are now
711 passed through string_printing() before being added to log lines.
712
ddea74fa 713PH/20 Added the "servers=" facility to MySQL and PostgreSQL lookups. (Oracle
b7670459
PH
714 and InterBase are left for another time.)
715
ddea74fa
PH
716PH/21 Added message_body_newlines option.
717
ce9f225c
PH
718PH/22 Guard against possible overflow in moan_check_errorcopy().
719
19897d52
PH
720PH/23 POSIX allows open() to be a macro; guard against that.
721
bc64a74d
PH
722PH/24 If the recipient of an error message contained an @ in the local part
723 (suitably quoted, of course), incorrect values were put in $domain and
724 $local_part during the evaluation of errors_copy.
725
eb4c0de6 726
b4ed4da0
PH
727Exim version 4.67
728-----------------
729
22ad45c9
MH
730MH/01 Fix for bug #448, segfault in Dovecot authenticator when interface_address
731 is unset (happens when testing with -bh and -oMi isn't used). Thanks to
732 Jan Srzednicki.
733
b4ed4da0
PH
734PH/01 Added a new log selector smtp_no_mail, to log SMTP sessions that do not
735 issue a MAIL command.
736
431b7361
PH
737PH/02 In an ACL statement such as
738
739 deny dnslists = X!=127.0.0.2 : X=127.0.0.2
740
741 if a client was not listed at all, or was listed with a value other than
742 127.0.0.2, in the X list, but was listed with 127.0.0.2 in the Y list,
743 the condition was not true (as it should be), so access was not denied.
744 The bug was that the ! inversion was incorrectly passed on to the second
745 item. This has been fixed.
746
747PH/03 Added additional dnslists conditions == and =& which are different from
748 = and & when the dns lookup returns more than one IP address.
749
83da1223
PH
750PH/04 Added gnutls_require_{kx,mac,protocols} to give more control over the
751 cipher suites used by GnuTLS. These options are ignored by OpenSSL.
752
54fc8428
PH
753PH/05 After discussion on the list, added a compile time option ENABLE_DISABLE_
754 FSYNC, which compiles an option called disable_fsync that allows for
755 bypassing fsync(). The documentation is heavily laced with warnings.
756
34c5e8dd
SC
757SC/01 Updated eximstats to collate all SpamAssassin rejects into one bucket.
758
bbe15da8
PH
759PH/06 Some tidies to the infrastructure of the Test Suite that is concerned
760 with the auxiliary C programs that it uses: (1) Arrange for BIND_8_COMPAT
761 to be defined when compiling on OSX (Darwin); (2) Tidies to the Makefile,
762 including adding "make clean"; (3) Added -fPIC when compiling the test
763 dynamically loaded module, to get rid of a warning.
764
0e8a9471
MH
765MH/02 Fix for bug #451, causing paniclog entries to be written if a bounce
766 message fails, move_frozen_messages = true and ignore_bounce_errors_after
767 = 0s. The bug is otherwise harmless.
768
f0872424
PH
769PH/07 There was a bug in the dovecot authenticator such that the value of
770 $auth1 could be overwritten, and so not correctly preserved, after a
771 successful authentication. This usually meant that the value preserved by
772 the server_setid option was incorrect.
773
b01dd148
PH
774PH/08 Added $smtp_count_at_connection_start, deliberately with a long name.
775
6bf342e1
PH
776PH/09 Installed PCRE release 7.0.
777
273f34d0
PH
778PH/10 The acl_not_smtp_start ACL was, contrary to the documentation, not being
779 run for batched SMTP input. It is now run at the start of every message
780 in the batch. While fixing this I discovered that the process information
781 (output by running exiwhat) was not always getting set for -bs and -bS
782 input. This is fixed, and it now also says "batched" for BSMTP.
783
cf8b11a5
PH
784PH/11 Added control=no_pipelining.
785
41c7c167
PH
786PH/12 Added $sending_ip_address and $sending_port (mostly Magnus Holmgren's
787 patch, slightly modified), and move the expansion of helo_data till after
788 the connection is made in the smtp transport (so it can use these
789 values).
790
9c57cbc0
PH
791PH/13 Added ${rfc2047d: to decoded RFC 2047 strings.
792
f3f065bb
PH
793PH/14 Added log_selector = +pid.
794
047bdd8c
PH
795PH/15 Flush SMTP output before delaying, unless control=no_delay_flush is set.
796
0ce9abe6
PH
797PH/16 Add ${if forany and ${if forall.
798
0e22dfd1
PH
799PH/17 Added dsn_from option to vary the From: line in DSNs.
800
4c590bd1
PH
801PH/18 Flush SMTP output before performing a callout, unless control =
802 no_callout_flush is set.
803
09945f1e
PH
804PH/19 Change 4.64/PH/36 introduced a bug: when address_retry_include_sender
805 was true (the default) a successful delivery failed to delete the retry
806 item, thus causing premature timeout of the address. The bug is now
807 fixed.
808
c51b8e75
PH
809PH/20 Added hosts_avoid_pipelining to the smtp transport.
810
e28326d8
PH
811PH/21 Long custom messages for fakedefer and fakereject are now split up
812 into multiline reponses in the same way that messages for "deny" and
813 other ACL rejections are.
814
75b1493f
PH
815PH/22 Applied Jori Hamalainen's speed-up changes and typo fixes to exigrep,
816 with slight modification.
817
7c5214ec
PH
818PH/23 Applied sieve patches from the maintainer "tracking the latest notify
819 draft, changing the syntax and factoring some duplicate code".
820
4311097e
PH
821PH/24 When the log selector "outgoing_port" was set, the port was shown as -1
822 for deliveries of the second and subsequent messages over the same SMTP
823 connection.
824
29f89cad
PH
825PH/25 Applied Magnus Holmgren's patch for ${addresses, ${map, ${filter, and
826 ${reduce, with only minor "tidies".
827
5e687460
SC
828SC/02 Applied Daniel Tiefnig's patch to improve the '($parent) =' pattern match.
829
c3611384
PH
830PH/26 Added a "continue" ACL modifier that does nothing, for the benefit of its
831 expansion side effects.
832
5a11a7b4
PH
833PH/27 When a message times out after an over-quota error from an Exim-imposed
834 quota, the bounce message says "mailbox is full". This message was not
835 being given when it was a system quota that was exceeded. It now should
836 be the same.
837
0e20aff9
MH
838MH/03 Made $recipients available in local_scan(). local_scan() already has
839 better access to the recipient list through recipients_list[], but
840 $recipients can be useful in postmaster-provided expansion strings.
841
ca86f471
PH
842PH/28 The $smtp_command and $smtp_command_argument variables were not correct
843 in the case of a MAIL command with additional options following the
844 address, for example: MAIL FROM:<foo@bar> SIZE=1234. The option settings
845 were accidentally chopped off.
846
a14e5636
PH
847PH/29 SMTP synchronization checks are implemented when a command is read -
848 there is a check that no more input is waiting when there shouldn't be
849 any. However, for some commands, a delay in an ACL can mean that it is
850 some time before the response is written. In this time, more input might
851 arrive, invalidly. So now there are extra checks after an ACL has run for
852 HELO/EHLO and after the predata ACL, and likewise for MAIL and RCPT when
853 pipelining has not been advertised.
854
ec95d1a6
PH
855PH/30 MH's patch to allow iscntrl() characters to be list separators.
856
42855d71
PH
857PH/31 Unlike :fail:, a custom message specified with :defer: was not being
858 returned in the SMTP response when smtp_return_error_details was false.
859 This has been fixed.
860
57c2c631
PH
861PH/32 Change the Dovecot authenticator to use read() and write() on the socket
862 instead of the C I/O that was originally supplied, because problems were
863 reported on Solaris.
864
58c01c94
PH
865PH/33 Compile failed with OpenSSL 0.9.8e. This was due to a coding error in
866 Exim which did not show up earlier: it was assuming that a call to
867 SSL_CTX_set_info_callback() might give an error value. In fact, there is
868 no error. In previous releases of OpenSSL, SSL_CTX_set_info_callback()
869 was a macro that became an assignment, so it seemed to work. This has
870 changed to a proper function call with a void return, hence the compile
871 error. Exim's code has been fixed.
872
dee5a20a
PH
873PH/34 Change HDA_SIZE in oracle.c from 256 to 512. This is needed for 64-bit
874 cpus.
875
d2ee6114
PH
876PH/35 Applied a patch from the Sieve maintainer which fixes a bug in "notify".
877
b2d5182b
PH
878PH/36 Applied John Jetmore's patch to add -v functionality to exigrep.
879
79749a79
PH
880PH/37 If a message is not accepted after it has had an id assigned (e.g.
881 because it turns out to be too big or there is a timeout) there is no
3ce62588
PH
882 "Completed" line in the log. When some messages of this type were
883 selected by exigrep, they were listed as "not completed". Others were
884 picked up by some special patterns. I have improved the selection
885 criteria to be more general.
79749a79 886
c456d9bb
PH
887PH/38 The host_find_failed option in the manualroute router can now be set
888 to "ignore", to completely ignore a host whose IP address cannot be
889 found. If all hosts are ignored, the behaviour is controlled by the new
890 host_all_ignored option.
891
cd9868ec
PH
892PH/39 In a list of hosts for manualroute, if one item (either because of multi-
893 homing or because of multiple MX records with /mx) generated more than
894 one IP address, and the following item turned out to be the local host,
895 all the secondary addresses of the first item were incorrectly removed
896 from the list, along with the local host and any following hosts (which
897 is what is supposed to happen).
898
ebeaf996
PH
899PH/40 When Exim receives a message, it writes the login name, uid, and gid of
900 whoever called Exim into the -H file. In the case of the daemon it was
901 behaving confusingly. When first started, it used values for whoever
902 started the daemon, but after a SIGHUP it used the Exim user (because it
903 calls itself on a restart). I have changed the code so that it now always
904 uses the Exim user.
905
2679d413
PH
906PH/41 (Following a suggestion from Tony Finch) If all the RCPT commands in a
907 message are rejected with the same error (e.g. no authentication or bad
908 sender address), and a DATA command is nevertheless sent (as can happen
909 with PIPELINING or a stupid MUA), the error message that was given to the
910 RCPT commands is included in the rejection of the DATA command. This is
911 intended to be helpful for MUAs that show only the final error to their
912 users.
913
84024b72
PH
914PH/42 Another patch from the Sieve maintainer.
915
8005d38e
SC
916SC/02 Eximstats - Differentiate between permanent and temporary rejects.
917 Eximstats - Fixed some broken HTML links and added missing column headers
918 (Jez Hancock).
919 Eximstats - Fixed Grand Total Summary Domains, Edomains, and Email
920 columns for Rejects, Temp Rejects, Ham, and Spam rows.
921
3298c6c6
SC
922SC/03 Eximstats - V1.58 Fix to get <> and blackhole to show in edomain tables.
923
a43a27c5
PH
924PH/43 Yet another patch from the Sieve maintainer.
925
58eb016e 926PH/44 I found a way to check for a TCP/IP connection going away before sending
563b63fa
PH
927 the response to the final '.' that terminates a message, but only in the
928 case where the client has not sent further data following the '.'
929 (unfortunately, this is allowed). However, in many cases there won't be
930 any further data because there won't be any more messages to send. A call
931 to select() can be used: if it shows that the input is "ready", there is
932 either input waiting, or the socket has been closed. An attempt to read
933 the next input character can distinguish the two cases. Previously, Exim
58eb016e 934 would have sent an OK response which the client would never have see.
563b63fa
PH
935 This could lead to message repetition. This fix should cure that, at
936 least in a lot of common cases.
58eb016e 937
b43a74ea
PH
938PH/45 Do not advertise STARTTLS in response to HELP unless it would be
939 advertised in response to EHLO.
940
b4ed4da0 941
5dd1517f
PH
942Exim version 4.66
943-----------------
944
945PH/01 Two more bugs that were introduced by 4.64/PH/07, in addition to the one
946 fixed by 4.65/MH/01 (is this a record?) are fixed:
947
948 (i) An empty string was always treated as zero by the numeric comparison
949 operators. This behaviour has been restored.
950
951 (ii) It is documented that the numeric comparison operators always treat
952 their arguments as decimal numbers. This was broken in that numbers
953 starting with 0 were being interpreted as octal.
954
955 While fixing these problems I realized that there was another issue that
956 hadn't been noticed. Values of message_size_limit (both the global option
957 and the transport option) were treated as octal if they started with 0.
958 The documentation was vague. These values are now always treated as
959 decimal, and I will make that clear in the documentation.
960
961
93cfa765
TK
962Exim version 4.65
963-----------------
964
965TK/01 Disable default definition of HAVE_LINUX_SENDFILE. Clashes with
966 Linux large file support (_FILE_OFFSET_BITS=64) on older glibc
967 versions. (#438)
968
d6066548
MH
969MH/01 Don't check that the operands of numeric comparison operators are
970 integers when their expansion is in "skipping" mode (fixes bug
971 introduced by 4.64-PH/07).
972
4362ff0d
PH
973PH/01 If a system filter or a router generates more than SHRT_MAX (32767)
974 child addresses, Exim now panics and dies. Previously, because the count
975 is held in a short int, deliveries were likely to be lost. As such a
976 large number of recipients for a single message is ridiculous
977 (performance will be very, very poor), I have chosen to impose a limit
978 rather than extend the field.
979
93cfa765 980
944e9e9c
TF
981Exim version 4.64
982-----------------
aa41d2de 983
21d74bd9
TK
984TK/01 Bugzilla #401. Fix DK spooling code so that it can overwrite a
985 leftover -K file (the existence of which was triggered by #402).
986 While we were at it, introduced process PID as part of the -K
987 filename. This should rule out race conditions when creating
988 these files.
989
990TK/02 Bugzilla #402. Apply patch from Simon Arlott, speeding up DK signing
991 processing considerably. Previous code took too long for large mails,
992 triggering a timeout which in turn triggers #401.
993
994TK/03 Introduced HAVE_LINUX_SENDFILE to os.h-Linux. Currently only used
995 in the DK code in transports.c. sendfile() is not really portable,
996 hence the _LINUX specificness.
944e9e9c
TF
997
998TF/01 In the add_headers option to the mail command in an Exim filter,
999 there was a bug that Exim would claim a syntax error in any
1000 header after the first one which had an odd number of characters
1001 in the field name.
1002
2b1c6e3a
PH
1003PH/01 If a server that rejects MAIL FROM:<> was the target of a sender
1004 callout verification, Exim cached a "reject" for the entire domain. This
1005 is correct for most verifications, but it is not correct for a recipient
1006 verification with use_sender or use_postmaster set, because in that case
1007 the callout does not use MAIL FROM:<>. Exim now distinguishes the special
1008 case of MAIL FROM:<> rejection from other early rejections (e.g.
1009 rejection of HELO). When verifying a recipient using a non-null MAIL
1010 address, the cache is ignored if it shows MAIL FROM:<> rejection.
1011 Whatever the result of the callout, the value of the domain cache is
1012 left unchanged (for any other kind of callout, getting as far as trying
1013 RCPT means that the domain itself is ok).
1014
1f872c80
PH
1015PH/02 Tidied a number of unused variable and signed/unsigned warnings that
1016 gcc 4.1.1 threw up.
1017
1018PH/03 On Solaris, an unexpectedly close socket (dropped connection) can
1019 manifest itself as EPIPE rather than ECONNECT. When tidying away a
1020 session, the daemon ignores ECONNECT errors and logs others; it now
1021 ignores EPIPE as well.
1022
d203e649
PH
1023PH/04 Applied Nico Erfurth's refactoring patch to tidy up mime.c
1024 (quoted-printable decoding).
1025
cc2ed8f7 1026PH/05 Applied Nico Erfurth's refactoring patch to tidy up spool_mbox.c, and
21a04aa3 1027 later the small subsequent patch to fix an introduced bug.
f951fd57 1028
ddfcd446
PH
1029PH/06 Installed the latest Cygwin Makefile from the Cygwin maintainer.
1030
d45b1de8
PH
1031PH/07 There was no check for overflow in expansions such as ${if >{1}{4096M}}.
1032
1033PH/08 An error is now given if message_size_limit is specified negative.
1034
38a0a95f 1035PH/09 Applied and tidied up Jakob Hirsch's patch for allowing ACL variables
641cb756 1036 to be given (somewhat) arbitrary names.
38a0a95f 1037
a2405d83
JJ
1038JJ/01 exipick 20060919.0, allow for arbitrary acl_ variables introduced
1039 in 4.64-PH/09.
1040
1041JJ/02 exipick 20060919.0, --show-vars args can now be regular expressions,
1042 miscellaneous code fixes
1043
6ea85e9a
PH
1044PH/10 Added the log_reject_target ACL modifier to specify where to log
1045 rejections.
1046
26da7e20
PH
1047PH/11 Callouts were setting the name used for EHLO/HELO from $smtp_active_
1048 hostname. This is wrong, because it relates to the incoming message (and
1049 probably the interface on which it is arriving) and not to the outgoing
1050 callout (which could be using a different interface). This has been
1051 changed to use the value of the helo_data option from the smtp transport
1052 instead - this is what is used when a message is actually being sent. If
1053 there is no remote transport (possible with a router that sets up host
1054 addresses), $smtp_active_hostname is used.
6ea85e9a 1055
14aa5a05 1056PH/12 Installed Andrey Panin's patch to add a dovecot authenticator. Various
7befa435 1057 tweaks were necessary in order to get it to work (see also 21 below):
14aa5a05
PH
1058 (a) The code assumed that strncpy() returns a negative number on buffer
1059 overflow, which isn't the case. Replaced with Exim's string_format()
1060 function.
1061 (b) There were several signed/unsigned issues. I just did the minimum
1062 hacking in of casts. There is scope for a larger refactoring.
1063 (c) The code used strcasecmp() which is not a standard C function.
1064 Replaced with Exim's strcmpic() function.
1065 (d) The code set only $1; it now sets $auth1 as well.
1066 (e) A simple test gave the error "authentication client didn't specify
1067 service in request". It would seem that Dovecot has changed its
1068 interface. Fortunately there's a specification; I followed it and
1069 changed what the client sends and it appears to be working now.
1070
ff75a1f7
PH
1071PH/13 Added $message_headers_raw to provide the headers without RFC 2047
1072 decoding.
1073
e6f6568e
PH
1074PH/14 Corrected misleading output from -bv when -v was also used. Suppose the
1075 address A is aliased to B and C, where B exists and C does not. Without
1076 -v the output is "A verified" because verification stops after a
1077 successful redirection if more than one address is generated. However,
1078 with -v the child addresses are also verified. Exim was outputting "A
1079 failed to verify" and then showing the successful verification for C,
1080 with its parentage. It now outputs "B failed to verify", showing B's
1081 parentage before showing the successful verification of C.
1082
d6f6e0dc
PH
1083PH/15 Applied Michael Deutschmann's patch to allow DNS black list processing to
1084 look up a TXT record in a specific list after matching in a combined
1085 list.
1086
322050c2
PH
1087PH/16 It seems that the options setting for the resolver (RES_DEFNAMES and
1088 RES_DNSRCH) can affect the behaviour of gethostbyname() and friends when
1089 they consult the DNS. I had assumed they would set it the way they
1090 wanted; and indeed my experiments on Linux seem to show that in some
1091 cases they do (I could influence IPv6 lookups but not IPv4 lookups).
1092 To be on the safe side, however, I have now made the interface to
1093 host_find_byname() similar to host_find_bydns(), with an argument
1094 containing the DNS resolver options. The host_find_byname() function now
1095 sets these options at its start, just as host_find_bydns() does. The smtp
1096 transport options dns_qualify_single and dns_search_parents are passed to
1097 host_find_byname() when gethostbyname=TRUE in this transport. Other uses
1098 of host_find_byname() use the default settings of RES_DEFNAMES
1099 (qualify_single) but not RES_DNSRCH (search_parents).
1100
08955dd3
PH
1101PH/17 Applied (a modified version of) Nico Erfurth's patch to make
1102 spool_read_header() do less string testing, by means of a preliminary
1103 switch on the second character of optional "-foo" lines. (This is
1104 overdue, caused by the large number of possibilities that now exist.
1105 Originally there were few.) While I was there, I also converted the
1106 str(n)cmp tests so they don't re-test the leading "-" and the first
1107 character, in the hope this might squeeze out yet more improvement.
1108
1eccaa59
PH
1109PH/18 Two problems with "group" syntax in header lines when verifying: (1) The
1110 flag allowing group syntax was set by the header_syntax check but not
1111 turned off, possible causing trouble later; (2) The flag was not being
1112 set at all for the header_verify test, causing "group"-style headers to
1113 be rejected. I have now set it in this case, and also caused header_
1114 verify to ignore an empty address taken from a group. While doing this, I
1115 came across some other cases where the code for allowing group syntax
1116 while scanning a header line wasn't quite right (mostly, not resetting
1117 the flag correctly in the right place). These bugs could have caused
1118 trouble for malformed header lines. I hope it is now all correct.
1119
602e59e5
PH
1120PH/19 The functions {pwcheck,saslauthd}_verify_password() are always called
1121 with the "reply" argument non-NULL. The code, however (which originally
1122 came from elsewhere) had *some* tests for NULL when it wrote to *reply,
1123 but it didn't always do it. This confused somebody who was copying the
1124 code for some other use. I have removed all the tests.
1125
411ef850
PH
1126PH/20 It was discovered that the GnuTLS code had support for RSA_EXPORT, a
1127 feature that was used to support insecure browsers during the U.S. crypto
1128 embargo. It requires special client support, and Exim is probably the
1129 only MTA that supported it -- and would never use it because real RSA is
1130 always available. This code has been removed, because it had the bad
1131 effect of slowing Exim down by computing (never used) parameters for the
1132 RSA_EXPORT functionality.
1133
7befa435
PH
1134PH/21 On the advice of Timo Sirainen, added a check to the dovecot
1135 authenticator to fail if there's a tab character in the incoming data
1136 (there should never be unless someone is messing about, as it's supposed
1137 to be base64-encoded). Also added, on Timo's advice, the "secured" option
1138 if the connection is using TLS or if the remote IP is the same as the
1139 local IP, and the "valid-client-cert option" if a client certificate has
1140 been verified.
1141
48da4259 1142PH/22 As suggested by Dennis Davis, added a server_condition option to *all*
16ff981e
PH
1143 authenticators. This can be used for authorization after authentication
1144 succeeds. (In the case of plaintext, it servers for both authentication
1145 and authorization.)
1146
48da4259
PH
1147PH/23 Testing for tls_required and lost_connection in a retry rule didn't work
1148 if any retry times were supplied.
1149
d1d5595c
PH
1150PH/24 Exim crashed if verify=helo was activated during an incoming -bs
1151 connection, where there is no client IP address to check. In this
1152 situation, the verify now always succeeds.
1153
0ef732d9
PH
1154PH/25 Applied John Jetmore's -Mset patch.
1155
328895cc
PH
1156PH/26 Added -bem to be like -Mset, but loading a message from a file.
1157
fd700877
PH
1158PH/27 In a string expansion for a processed (not raw) header when multiple
1159 headers of the same name were present, leading whitespace was being
1160 removed from all of them, but trailing whitespace was being removed only
1161 from the last one. Now trailing whitespace is removed from each header
f6c332bd
PH
1162 before concatenation. Completely empty headers in a concatenation (as
1163 before) are ignored.
fd700877 1164
8dce1a6f
PH
1165PH/28 Fixed bug in backwards-compatibility feature of PH/09 (thanks to John
1166 Jetmore). It would have mis-read ACL variables from pre-4.61 spool files.
1167
17af4a17
PH
1168PH/29 [Removed. This was a change that I later backed out, and forgot to
1169 correct the ChangeLog entry (that I had efficiently created) before
1170 committing the later change.]
f6c332bd
PH
1171
1172PH/30 Exim was sometimes attempting to deliver messages that had suffered
1173 address errors (4xx response to RCPT) over the same connection as other
1174 messages routed to the same hosts. Such deliveries are always "forced",
1175 so retry times are not inspected. This resulted in far too many retries
1176 for the affected addresses. The effect occurred only when there were more
1177 hosts than the hosts_max_try setting in the smtp transport when it had
1178 the 4xx errors. Those hosts that it had tried were not added to the list
1179 of hosts for which the message was waiting, so if all were tried, there
1180 was no problem. Two fixes have been applied:
1181
1182 (i) If there are any address or message errors in an SMTP delivery, none
1183 of the hosts (tried or untried) are now added to the list of hosts
1184 for which the message is waiting, so the message should not be a
1185 candidate for sending over the same connection that was used for a
1186 successful delivery of some other message. This seems entirely
1187 reasonable: after all the message is NOT "waiting for some host".
1188 This is so "obvious" that I'm not sure why it wasn't done
1189 previously. Hope I haven't missed anything, but it can't do any
1190 harm, as the worst effect is to miss an optimization.
1191
1192 (ii) If, despite (i), such a delivery is accidentally attempted, the
1193 routing retry time is respected, so at least it doesn't keep
1194 hammering the server.
1195
c1114884
PH
1196PH/31 Installed Andrew Findlay's patch to close the writing end of the socket
1197 in ${readsocket because some servers need this prod.
1198
7a0743eb
PH
1199PH/32 Added some extra debug output when updating a wait-xxx database.
1200
0d85fa3f
PH
1201PH/33 The hint "could be header name not terminated by colon", which has been
1202 given for certain expansion errors for a long time, was not being given
1203 for the ${if def:h_colon_omitted{... case.
1204
1bf43b78
PH
1205PH/34 The spec says: "With one important exception, whenever a domain list is
1206 being scanned, $domain contains the subject domain." There was at least
1207 one case where this was not true.
1208
520de300
PH
1209PH/35 The error "getsockname() failed: connection reset by peer" was being
1210 written to the panic log as well as the main log, but it isn't really
1211 panic-worthy as it just means the connection died rather early on. I have
1212 removed the panic log writing for the ECONNRESET error when getsockname()
1213 fails.
1214
48c7f9e2
PH
1215PH/36 After a 4xx response to a RCPT error, that address was delayed (in queue
1216 runs only) independently of the message's sender address. This meant
1217 that, if the 4xx error was in fact related to the sender, a different
1218 message to the same recipient with a different sender could confuse
1219 things. In particualar, this can happen when sending to a greylisting
1220 server, but other circumstances could also provoke similar problems.
1221 I have changed the default so that the retry time for these errors is now
1222 based a combination of the sender and recipient addresses. This change
1223 can be overridden by setting address_retry_include_sender=false in the
1224 smtp transport.
1225
99ea1c86
PH
1226PH/37 For LMTP over TCP/IP (the smtp transport), error responses from the
1227 remote server are returned as part of bounce messages. This was not
1228 happening for LMTP over a pipe (the lmtp transport), but now it is the
1229 same for both kinds of LMTP.
1230
a2042e78
PH
1231PH/38 Despite being documented as not happening, Exim was rewriting addresses
1232 in header lines that were in fact CNAMEs. This is no longer the case.
1233
4fbcfc2e
PH
1234PH/39 If -R or -S was given with -q<time>, the effect of -R or -S was ignored,
1235 and queue runs started by the daemon processed all messages. This has
1236 been fixed so that -R and -S can now usefully be given with -q<time>.
1237
aa41d2de
PH
1238PH/40 Import PCRE release 6.7 (fixes some bugs).
1239
af561417
PH
1240PH/41 Add bitwise logical operations to eval (courtesy Brad Jorsch).
1241
3cc66b45
PH
1242PH/42 Give an error if -q is specified more than once.
1243
194cc0e4
PH
1244PH/43 Renamed the variables $interface_address and $interface_port as
1245 $received_ip_address and $received_port, to make it clear that these
1246 values apply to message reception, and not to the outgoing interface when
1247 a message is delivered. (The old names remain recognized, of course.)
1248
a401ddaa
PH
1249PH/44 There was no timeout on the connect() call when using a Unix domain
1250 socket in the ${readsocket expansion. There now is.
1251
4e88a19f
PH
1252PH/45 Applied a modified version of Brad Jorsch's patch to allow "message" to
1253 be meaningful with "accept".
1254
d7d7b289
SC
1255SC/01 Eximstats V1.43
1256 Bug fix for V1.42 with -h0 specified. Spotted by Chris Lear.
1257
1258SC/02 Eximstats V1.44
1259 Use a glob alias rather than an array ref in the generated
1260 parser. This improves both readability and performance.
1261
1262SC/03 Eximstats V1.45 (Marco Gaiarin / Steve Campbell)
1263 Collect SpamAssassin and rejection statistics.
1264 Don't display local sender or destination tables unless
1265 there is data to show.
1266 Added average volumes into the top table text output.
1267
1268SC/04 Eximstats V1.46
1269 Collect data on the number of addresses (recipients)
1270 as well as the number of messages.
1271
1272SC/05 Eximstats V1.47
1273 Added 'Message too big' to the list of mail rejection
1274 reasons (thanks to Marco Gaiarin).
1275
1276SC/06 Eximstats V1.48
1277 Mainlog lines which have GMT offsets and are too short to
1278 have a flag are now skipped.
1279
1280SC/07 Eximstats V1.49 (Alain Williams)
1281 Added the -emptyok flag.
1282
1283SC/08 Eximstats V1.50
1284 Fixes for obtaining the IP address from reject messages.
1285
0ea2a468
JJ
1286JJ/03 exipick.20061117.2, made header handling as similar to exim as possible
1287 (added [br]h_ prefixes, implemented RFC2047 decoding. Fixed
1288 whitesspace changes from 4.64-PH/27
1289
1290JJ/04 exipick.20061117.2, fixed format and added $message_headers_raw to
1291 match 4.64-PH/13
1292
1293JJ/05 exipick.20061117.2, bug fixes (error out sooner when invalid criteria
1294 are found, allow negative numbers in numeric criteria)
1295
1296JJ/06 exipick.20061117.2, added new $message_body_missing variable
1297
1298JJ/07 exipick.20061117.2, added $received_ip_address and $received_port
1299 to match changes made in 4.64-PH/43
1300
8a10f5a4
PH
1301PH/46 Applied Jori Hamalainen's patch to add features to exiqsumm.
1302
30e18802
PH
1303PH/47 Put in an explicit test for a DNS lookup of an address record where the
1304 "domain" is actually an IP address, and force a failure. This locks out
1305 those revolvers/nameservers that support "A-for-A" lookups, in
1306 contravention of the specifications.
1307
55728a4f
PH
1308PH/48 When a host name was looked up from an IP address, and the subsequent
1309 forward lookup of the name timed out, the host name was left in
1310 $sender_host_name, contrary to the specification.
d7d7b289 1311
d7837193
PH
1312PH/49 Although default lookup types such as lsearch* or cdb*@ have always been
1313 restricted to single-key lookups, Exim was not diagnosing an error if
1314 * or *@ was used with a query-style lookup.
1315
87054a31
PH
1316PH/50 Increased the value of DH_BITS in tls-gnu.c from 768 to 1024.
1317
ea2c01d2
MH
1318MH/01 local_scan ABI version incremented to 1.1. It should have been updated
1319 long ago, but noone interested enough thought of it. Let's just say that
1320 the "1.1" means that there are some new functions that weren't there at
1321 some point in the past.
1322
e4fa6968
PH
1323PH/51 Error processing for expansion failure of helo_data from an smtp
1324 transport during callout processing was broken.
1325
56f5d9bd
PH
1326PH/52 Applied John Jetmore's patch to allow tls-on-connect and STARTTLS to be
1327 tested/used via the -bh/-bhc/-bs options.
1328
922e1c28
PH
1329PH/53 Added missing "#include <time.h>" to pcre/pcretest.c (this was a PCRE
1330 bug, fixed in subsequent PCRE releases).
1331
21eb6e72
PH
1332PH/54 Applied Robert Bannocks' patch to avoid a problem with references that
1333 arises when using the Solaris LDAP libraries (but not with OpenLDAP).
1334
a0540757
PH
1335PH/55 Check for a ridiculously long file name in exim_dbmbuild.
1336
944e9e9c 1337
478be7b0
SC
1338Exim version 4.63
1339-----------------
1340
1341SC/01 Use a glob alias rather than an array ref in eximstats generated
1342 parser. This improves both readability and performance.
1343
1344SC/02 Collect SpamAssassin and rejection statistics in eximstats.
1345 Don't display local sender or destination tables in eximstats unless
1346 there is data to show.
1347 Added average volumes into the eximstats top table text output.
1348
1349SC/03 Collect data on the number of addresses (recipients) as well
1350 as the number of messages in eximstats.
1351
2b965a65
TF
1352TF/01 Correct an error in the documentation for the redirect router. Exim
1353 does (usually) call initgroups() when daemonizing.
478be7b0 1354
45b91596
PH
1355TF/02 Call initgroups() when dropping privilege in exim.c, so that Exim runs
1356 with consistent privilege compared to when running as a daemon.
478be7b0 1357
c59f5781
TF
1358TF/03 Note in the spec that $authenticated_id is not set for local
1359 submissions from trusted users.
1360
90fc3069
TF
1361TF/04 The ratelimit per_rcpt option now works correctly in acl_not_smtp.
1362 Thanks to Dean Brooks <dean@iglou.com> for the patch.
1363
6083aca0
TF
1364TF/05 Make it easier to get SMTP authentication and TLS/SSL support working
1365 by adding some example configuration directives to the default
1366 configuration file. A little bit of work is required to uncomment the
1367 directives and define how usernames and passwords are checked, but
1368 there is now a framework to start from.
1369
765b530f
PH
1370PH/01 Added #define LDAP_DEPRECATED 1 to ldap.c because some of the "old"
1371 functions that Exim currently uses aren't defined in ldap.h for OpenLDAP
1372 without this. I don't know how relevant this is to other LDAP libraries.
1373
4e167a8c
PH
1374PH/02 Add the verb name to the "unknown ACL verb" error.
1375
4608d683
PH
1376PH/03 Magnus Holmgren's patch for filter_prepend_home.
1377
b8dc3e4a
PH
1378PH/03 Fixed Bugzilla #101: macro definition between ACLs doesn't work.
1379
5418e93b
PH
1380PH/04 Applied Magnus Holmgren's patch to fix Bugzilla #98: transport's home
1381 directory not expanded when it should be if an expanded home directory
1382 was set for the address (which is overridden by the transport).
1383
b4a9bda2
PH
1384PH/05 Applied Alex Kiernan's patch to fix Bugzilla #99: a problem with
1385 libradius.
1386
45b91596
PH
1387PH/06 Added acl_not_smtp_start, based on Johannes Berg's patch, and set the
1388 bit to forbid control=suppress_local_fixups in the acl_not_smtp ACL,
1389 because it is too late at that time, and has no effect.
1390
5547e2c5
PH
1391PH/07 Changed ${quote_pgsql to quote ' as '' instead of \' because of a
1392 security issue with \' (bugzilla #107). I could not use the
1393 PQescapeStringConn() function, because it needs a PGconn value as one of
1394 its arguments.
1395
dbcef0ea
PH
1396PH/08 When testing addresses using -bt, indicate those final addresses that
1397 are duplicates that would not cause an additional delivery. At least one
1398 person was confused, thinking that -bt output corresponded to deliveries.
1399 (Suppressing duplicates isn't a good idea as you lose the information
1400 about possibly different redirections that led to the duplicates.)
1401
25257489
PH
1402PH/09 Applied patch from Erik to use select() instead of poll() in spam.c on
1403 systems where poll() doesn't work, in particular OS X.
1404
c816d124
PH
1405PH/10 Added more information to debugging output for retry time not reached.
1406
a9ccd69a
PH
1407PH/11 Applied patch from Arkadiusz Miskiewicz to apply a timeout to read
1408 operations in malware.c.
1409
75fa1910
PH
1410PH/12 Applied patch from Magnus Holmgren to include the "h" tag in Domain Keys
1411 signatures.
1412
a7d7aa58
PH
1413PH/13 If write_rejectlog was set false when logging was sent to syslog with
1414 syslog_duplication set false, log lines that would normally be written
1415 both the the main log and to the reject log were not written to syslog at
1416 all.
1417
42119b09
PH
1418PH/14 In the default configuration, change the use of "message" in ACL warn
1419 statements to "add_header".
1420
41609df5
PH
1421PH/15 Diagnose a filter syntax error for "seen", "unseen", or "noerror" if not
1422 not followed by a command (e.g. "seen endif").
1423
a5bd321b
PH
1424PH/16 Recognize SMTP codes at the start of "message" in ACLs and after :fail:
1425 and :defer: in a redirect router. Add forbid_smtp_code to suppress the
1426 latter.
1427
e85a7ad5 1428PH/17 Added extra conditions to the default value of delay_warning_condition
5dff5817
PH
1429 so that it is now:
1430
e85a7ad5
PH
1431 ${if or { \
1432 { !eq{$h_list-id:$h_list-post:$h_list-subscribe:}{} } \
1433 { match{$h_precedence:}{(?i)bulk|list|junk} } \
1434 { match{$h_auto-submitted:}{(?i)auto-generated|auto-replied} } \
5dff5817
PH
1435 }{no}{yes}}
1436
e85a7ad5
PH
1437 The Auto-Submitted: and various List- headers are standardised, whereas I
1438 don't think Precedence: ever was.
5dff5817 1439
d8fe1c03
PH
1440PH/18 Refactored debugging code in route_finduser() to show more information,
1441 in particular, the error code if getpwnam() issues one.
1442
16282d2b
PH
1443PH/19 Added PQsetClientEncoding(conn, "SQL_ASCII") to the pgsql code module.
1444 This is apparently needed in addition to the PH/07 change above to avoid
1445 any possible encoding problems.
1446
35d40a98
PH
1447PH/20 Perl can change the locale. Exim was resetting it after a ${perl call,
1448 but not after initializing Perl.
1449
034d99ab
PH
1450PH/21 Added a call to PQsetNoticeProcessor() to catch pgsql "notices" and
1451 output them only if debugging. By default they are written stderr,
1452 apparently, which is not desirable.
1453
6ec97b1b
PH
1454PH/22 Added Alain Williams' LDAP patch to support setting REFERRALS=off on
1455 queries.
1456
e22ca4ac
JJ
1457JJ/01 exipick: added --reverse (and -R synonym), --random, --size, --sort and
1458 --not options
1459
1460JJ/02 exipick: rewrote --help documentation to hopefully make more clear.
1461
33d73e3b
PH
1462PH/23 Made -oMaa and -oMt work with -bh and -bs to pretend the connection is
1463 authenticated or an ident call has been made. Suppress the default
1464 values for $authenticated_id and $authenticated_sender (but permit -oMai
1465 and -oMas) when testing with -bh.
1466
9ecb03f3
PH
1467PH/24 Re-jigged the order of the tests in the default configuration so that the
1468 tests for valid domains and recipients precede the DNS black list and CSA
1469 tests, on the grounds that those ones are more expensive.
1470
084efe8d
PH
1471PH/25 Exim was not testing for a space following SMTP commands such as EHLO
1472 that require one. Thus, EHLORHUBARB was interpreted as a valid command.
1473 This bug exists in every version of Exim that I still have, right back to
1474 0.12.
1475
366fc9f0
PH
1476PH/26 (n)wildlsearch lookups are documented as being done case-insensitively.
1477 However, an attempt to turn on case-sensitivity in a regex key by
1478 including (?-i) didn't work because the subject string was already
1479 lowercased, and the effects were non-intuitive. It turns out that a
1480 one-line patch can be used to allow (?-i) to work as expected.
1481
c59f5781 1482
c887c79e
TF
1483Exim version 4.62
1484-----------------
1485
1486TF/01 Fix the add_header change below (4.61 PH/55) which had a bug that (amongst
1487 other effects) broke the use of negated acl sub-conditions.
1488
1cce3af8
PH
1489PH/01 ${readsocket now supports Internet domain sockets (modified John Jetmore
1490 patch).
1491
afb3eaaf
PH
1492PH/02 When tcp-wrappers is called from Exim, it returns only "deny" or "allow".
1493 "Deny" causes Exim to reject the incoming connection with a 554 error.
1494 Unfortunately, if there is a major crisis, such as a disk failure,
1495 tcp-wrappers gives "deny", whereas what one would like would be some
1496 kind of temporary error. A kludge has been added to help with this.
1497 Before calling hosts_ctl(), errno is set zero. If the result is "deny", a
1498 554 error is used if errno is still zero or contains ENOENT (which occurs
1499 if either of the /etc/hosts.{allow,deny} files is missing). Otherwise, a
1500 451 error is used.
1501
e173618b
PH
1502PH/03 Add -lutil to the default FreeBSD LIBS setting.
1503
dd16e114
PH
1504PH/04 Change PH/19 for 4.61 was too wide. It should not be applied to host
1505 errors. Otherwise a message that provokes a temporary error (when other
1506 messages do not) can cause a whole host to time out.
1507
f7fd3850
PH
1508PH/05 Batch deliveries by appendfile and pipe transports did not work when the
1509 addresses were routed directly to files or pipes from a redirect router.
1510 File deliveries just didn't batch; pipe deliveries might have suffered
1511 odd errors.
1512
d87df92c
PH
1513PH/06 A failure to get a lock for a hints database would erroneously always say
1514 "Failed to get write lock", even when it was really a read lock.
1515
7e9f683d
PH
1516PH/07 The appendfile transport was creating MBX lock files with a fixed mode
1517 of 0600. This has been changed to use the value of the lockfile_mode
1518 option (which defaults to 0600).
1519
bfad5236
PH
1520PH/08 Applied small patch from the Sieve maintainer.
1521
01c490df
PH
1522PH/09 If maildir_quota_directory_regex was set to exclude (say) the .Trash
1523 folder from quota calculations, a direct delivery into this folder messed
1524 up the contents of the maildirsize file. This was because the regex was
1525 used only to exclude .Trash (or whatever) when the size of the mailbox
1526 was calculated. There was no check that a delivery was happening into an
1527 excluded directory. This bug has been fixed by ignoring all quota
1528 processing for deliveries into excluded directories.
1529
d6629cdc
PH
1530PH/10 Added the maildirfolder_create_regex option to appendfile.
1531
1cce3af8 1532
214e2000
PH
1533Exim version 4.61
1534-----------------
1535
1536PH/01 The code for finding all the local interface addresses on a FreeBSD
1537 system running IPv6 was broken. This may well have applied to all BSD
1538 systems, as well as to others that have similar system calls. The broken
1539 code found IPv4 interfaces correctly, but gave incorrect values for the
1540 IPv6 interfaces. In particular, ::1 was not found. The effect in Exim was
1541 that it would not match correctly against @[] and not recognize the IPv6
1542 addresses as local.
1543
f9daeae0
PH
1544PH/02 The ipliteral router was not recognizing addresses of the form user@
1545 [ipv6:....] because it didn't know about the "ipv6:" prefix.
1546
7e66e54d
PH
1547PH/03 Added disable_ipv6.
1548
c8ea1597
PH
1549PH/04 Changed $reply_address to use the raw form of the headers instead of the
1550 decoded form, because it is most often used to construct To: headers
1551 lines in autoreplies, and the decoded form may well be syntactically
1552 invalid. However, $reply_address has leading white space removed, and all
1553 newlines turned into spaces so that the autoreply transport does not
1554 grumble.
1555
911f6fde
PH
1556PH/05 If group was specified without a user on a router, and no group or user
1557 was specified on a transport, the group from the router was ignored.
1558
47ca6d6c
PH
1559PH/06 Increased the number of ACL variables to 20 of each type, and arranged
1560 for visible compile-time settings that can be used to change these
1561 numbers, for those that want even more. Backwards compatibility with old
1562 spool files has been maintained. However, going back to a previous Exim
1563 release will lost any variables that are in spool files.
1564
ed0e9820
PH
1565PH/07 Two small changes when running in the test harness: increase delay when
1566 passing a TCP/IP connection to a new process, in case the original
1567 process has to generate a bounce, and remove special handling of
1568 127.0.0.2 (sic), which is no longer necessary.
1569
eff37e47
PH
1570PH/08 Changed debug output of dbfn_open() flags from numbers to names, so as to
1571 be the same on different OS.
1572
1921d2ea
PH
1573PH/09 Moved a debug statement in filter processing to avoid a race problem when
1574 testing.
1575
b3f69ca8
JJ
1576JJ/01 exipick: fixed bug where -b (brief) output option showed "Vars:"
1577 whether --show-vars was specified or not
1578
1579JJ/02 exipick: Added support for new ACL variable spool format introduced
1580 in 4.61-PH/06
1581
424a1c63
PH
1582PH/10 Fixed another bug related to PH/04 above: if an incoming message had a
1583 syntactically invalid From: or Reply-to: line, and a filter used this to
1584 generate an autoreply, and therefore failed to obtain an address for the
1585 autoreply, Exim could try to deliver to a non-existent relative file
1586 name, causing unrelated and misleading errors. What now happens is that
1587 it logs this as a hard delivery error, but does not attempt to create a
1588 bounce message.
1589
7a100415
PH
1590PH/11 The exinext utility has a -C option for testing purposes, but although
1591 the given file was scanned by exinext itself; it wasn't being passed on
1592 when Exim was called.
1593
19b9dc85
PH
1594PH/12 In the smtp transport, treat an explicit ECONNRESET error the same as
1595 an end-of-file indication when reading a command response.
1596
309bd837
PH
1597PH/13 Domain literals for IPv6 were not recognized unless IPv6 support was
1598 compiled. In many other places in Exim, IPv6 addresses are always
1599 recognized, so I have changed this. It also means that IPv4 domain
1600 literals of the form [IPV4:n.n.n.n] are now always recognized.
1601
59e82a2a
PH
1602PH/14 When a uid/gid is specified for the queryprogram router, it cannot be
1603 used if the router is not running as root, for example, when verifying at
1604 ACL time, or when using -bh. The debugging output from this situation was
1605 non-existent - all you got was a failure to exec. I have made two
1606 changes:
1607
1608 (a) Failures to set uid/gid, the current directory, or a process leader
1609 in a subprocess such as that created by queryprogram now generate
1610 suitable debugging ouput when -d is set.
1611
1612 (b) The queryprogram router detects when it is not running as root,
1613 outputs suitable debugging information if -d is set, and then runs
1614 the subprocess without attempting to change uid/gid.
1615
9edc04ce
PH
1616PH/15 Minor change to Makefile for building test_host (undocumented testing
1617 feature).
1618
1349e1e5
PH
1619PH/16 As discussed on the list in Nov/Dec: Exim no longer looks at the
1620 additional section of a DNS packet that returns MX or SRV records.
1621 Instead, it always explicitly searches for A/AAAA records. This avoids
1622 major problems that occur when a DNS server includes only records of one
1623 type (A or AAAA) in an MX/SRV packet. A byproduct of this change has
1624 fixed another bug: if SRV records were looked up and the corresponding
1625 address records were *not* found in the additional section, the port
1626 values from the SRV records were lost.
1627
ea49d0e1
PH
1628PH/17 If a delivery to a pipe, file, or autoreply was deferred, Exim was not
1629 using the correct key (the original address) when searching the retry
1630 rules in order to find which one to use for generating the retry hint.
1631
064a94c9
PH
1632PH/18 If quota_warn_message contains a From: header, Exim now refrains from
1633 adding the default one. Similarly, if it contains a Reply-To: header, the
1634 errors_reply_to option, if set, is not used.
1635
727071f8
PH
1636PH/19 When calculating a retry time, Exim used to measure the "time since
1637 failure" by looking at the "first failed" field in the retry record. Now
1638 it does not use this if it is later than than the arrival time of the
1639 message. Instead it uses the arrival time. This makes for better
1640 behaviour in cases where some deliveries succeed, thus re-setting the
1641 "first failed" field. An example is a quota failure for a huge message
1642 when small messages continue to be delivered. Without this change, the
1643 "time since failure" will always be short, possible causing more frequent
1644 delivery attempts for the huge message than are intended.
dd16e114 1645 [Note: This change was subsequently modified - see PH/04 for 4.62.]
727071f8 1646
f78eb7c6
PH
1647PH/20 Added $auth1, $auth2, $auth3 to contain authentication data (as well as
1648 $1, $2, $3) because the numerical variables can be reset during some
1649 expansion items (e.g. "match"), thereby losing the authentication data.
1650
21c28500
PH
1651PH/21 Make -bV show the size of off_t variables so that the test suite can
1652 decide whether to run tests for quotas > 2G.
1653
1654PH/22 Test the values given for quota, quota_filecount, quota_warn_threshold,
1655 mailbox_size, and mailbox_filecount in the appendfile transport. If a
1656 filecount value is greater than 2G or if a quota value is greater than 2G
1657 on a system where the size of off_t is not greater than 4, a panic error
1658 is given.
1659
1688f43b
PH
1660PH/23 When a malformed item such as 1.2.3/24 appears in a host list, it can
1661 never match. The debug and -bh output now contains an explicit error
1662 message indicating a malformed IPv4 address or mask.
1663
1664PH/24 An host item such as 1.2.3.4/abc was being treated as the IP address
1665 1.2.3.4 without a mask. Now it is not recognized as an IP address, and
1666 PH/23 above applies.
1667
9675b384
PH
1668PH/25 Do not write to syslog when running in the test harness. The only
1669 occasion when this arises is a failure to open the main or panic logs
1670 (for which there is an explicit test).
1671
6a3f1455
PH
1672PH/26 Added the /no_tell option to "control=freeze".
1673
dac79d3e
PH
1674PH/27 If a host name lookup failed very early in a connection, for example, if
1675 the IP address matched host_lookup and the reverse lookup yielded a name
1676 that did not have a forward lookup, an error message of the form "no IP
1677 address found for host xxx.xxx.xxx (during SMTP connection from NULL)"
1678 could be logged. Now it outputs the IP address instead of "NULL".
1349e1e5 1679
5977a0b3
PH
1680PH/28 An enabling patch from MH: add new function child_open_exim2() which
1681 allows the sender and the authenticated sender to be set when
1682 submitting a message from within Exim. Since child_open_exim() is
1683 documented for local_scan(), the new function should be too.
1684
c91535f3
PH
1685PH/29 In GnuTLS, a forced expansion failure for tls_privatekey was not being
1686 ignored. In both GnuTLS and OpenSSL, an expansion of tls_privatekey that
1687 results in an empty string is now treated as unset.
1688
0d46a8c8
PH
1689PH/30 Fix eximon buffer overflow bug (Bugzilla #73).
1690
278c6e6c
PH
1691PH/31 Added sender_verify_fail logging option.
1692
2cbb4081
PH
1693PH/32 In November 2003, the code in Exim that added an empty Bcc: header when
1694 needed by RFC 822 but not by RFC 2822 was commented out. I have now
1695 tidied the source and removed it altogether.
1696
3eef829e
PH
1697PH/33 When a queue run was abandoned because the load average was too high, a
1698 log line was always written; now it is written only if the queue_run log
1699 selector is set. In addition, the log line for abandonment now contains
1700 information about the queue run such as the pid. This is always present
1701 in "start" and "stop" lines but was omitted from the "abandon" line.
1702
1ab95fa6
PH
1703PH/34 Omit spaces between a header name and the colon in the error message that
1704 is given when verify = headers_syntax fails (if there are lots of them,
1705 the message gets confusing).
1706
230205fc
PH
1707PH/35 Change the default for dns_check_names_pattern to allow slashes within
1708 names, as there are now some PTR records that contain slashes. This check
1709 is only to protect against broken name servers that fall over on strange
1710 characters, so the fact that it applies to all lookups doesn't matter.
1711
75e0e026
PH
1712PH/36 Now that the new test suite is complete, we can remove some of the
1713 special code in Exim that was needed for the old test suite. For example,
1714 sorting DNS records because real resolvers return them in an arbitrary
1715 order. The new test suite's fake resolver always returns records in the
1716 same order.
1717
1718PH/37 When running in the test harness, use -odi for submitted messages (e.g.
1719 bounces) except when queue_only is set, to avoid logging races between
1720 the different processes.
1721
145396a6
PH
1722PH/38 Panic-die if .include specifies a non-absolute path.
1723
3cd34f13
PH
1724PH/39 A tweak to the "H" retry rule from its user.
1725
11121d3d
JJ
1726JJ/03 exipick: Removed parentheses from 'next' and 'last' calls that specified
1727 a label. They prevented compilation on older perls.
1728
1729JJ/04 exipick: Refactored code to prevent implicit split to @_ which caused
1730 a warning to be raised on newish perls.
1731
1732JJ/05 exipick: Fixed bug where -bpc always showed a count of all messages
1733 on queue. Changes to match documented behaviour of showing count of
1734 messages matching specified criteria.
1735
8def5aaf
PH
1736PH/40 Changed the default ident timeout from 30s to 5s.
1737
929ba01c
PH
1738PH/41 Added support for the use of login_cap features, on those BSD systems
1739 that have them, for controlling the resources used by pipe deliveries.
1740
2632889e
PH
1741PH/42 The content-scanning code uses fopen() to create files in which to put
1742 message data. Previously it was not paying any attention to the mode of
1743 the files. Exim runs with umask(0) because the rest of the code creates
1744 files with open(), and sets the required mode explicitly. Thus, these
1745 files were ending up world-writeable. This was not a big issue, because,
1746 being within the spool directory, they were not world-accessible. I have
1747 created a function called modefopen, which takes an additional mode
1748 argument. It sets umask(777), creates the file, chmods it to the required
1749 mode, then resets the umask. All the relevant calls to fopen() in the
1750 content scanning code have been changed to use this function.
1751
944a9c55
PH
1752PH/43 If retry_interval_max is set greater than 24 hours, it is quietly reset
1753 to 24 hours. This avoids potential overflow problems when processing G
1754 and H retry rules. I suspect nobody ever tinkers with this value.
1755
4a23603b
PH
1756PH/44 Added STRIP_COMMAND=/usr/bin/strip to the FreeBSD Makefile.
1757
4730f942
PH
1758PH/45 When the plaintext authenticator is running as a client, the server's
1759 challenges are checked to ensure they are valid base64 strings. By
1760 default, the authentication attempt is cancelled if an invalid string is
1761 received. Setting client_ignore_invalid_base64 true ignores these errors.
1762 The decoded challenge strings are now placed in $auth1, $auth2, etc. as
1763 they are received. Thus, the responses can be made to depend on the
1764 challenges. If an invalid string is ignored, an empty string is placed in
1765 the variable.
1766
30dba1e6
PH
1767PH/46 Messages that are created by the autoreply transport now contains a
1768 References: header, in accordance with RFCs 2822 and 3834.
1769
382afc6b
PH
1770PH/47 Added authenticated_sender_force to the smtp transport.
1771
a86229cf
PH
1772PH/48 The ${prvs expansion was broken on systems where time_t was long long.
1773
50c99ba6
PH
1774PH/49 Installed latest patch from the Sieve maintainer.
1775
d35e429d
PH
1776PH/50 When an Exim quota was set without a file count quota, and mailbox_size
1777 was also set, the appendfile transport was unnecessarily scanning a
1778 directory of message files (e.g. for maildir delivery) to find the count
1779 of files (along with the size), even though it did not need this
1780 information. It now does the scan only if it needs to find either the
1781 size of the count of files.
1782
f90d018c
PH
1783PH/51 Added ${time_eval: to convert Exim time strings into seconds.
1784
75def545
PH
1785PH/52 Two bugs concerned with error handling when the smtp transport is
1786 used in LMTP mode:
1787
1788 (i) Exim was not creating retry information for temporary errors given
1789 for individual recipients after the DATA command when the smtp transport
1790 was used in LMTP mode. This meant that they could be retried too
1791 frequently, and not timed out correctly.
1792
1793 (ii) Exim was setting the flag that allows error details to be returned
1794 for LMTP errors on RCPT commands, but not for LMTP errors for individual
1795 recipients that were returned after the DATA command.
1796
1797PH/53 This is related to PH/52, but is more general: for any failing address,
1798 when detailed error information was permitted to be returned to the
1799 sender, but the error was temporary, then after the final timeout, only
1800 "retry timeout exceeded" was returned. Now it returns the full error as
1801 well as "retry timeout exceeded".
1802
c46782ef
PH
1803PH/54 Added control=allow_auth_unadvertised, as it seems there are clients that
1804 do this, and (what is worse) MTAs that accept it.
1805
71fafd95
PH
1806PH/55 Added the add_header modified to ACLs. The use of "message" with "warn"
1807 will now be deprecated.
1808
2c5db4fd
PH
1809PH/56 New os.c-cygwin from the Cygwin maintainer.
1810
9cf6b11a
JJ
1811JJ/06 exipick: added --unsorted option to allow unsorted output in all output
1812 formats (previously only available in exim formats via -bpr, -bpru,
1813 and -bpra. Now also available in native and exiqgrep formats)
1814
1815JJ/07 exipick: added --freeze and --thaw options to allow faster interaction
1816 with very large, slow to parse queues
1817
1818JJ/08 exipick: added ! as generic prefix to negate any criteria format
1819
1820JJ/09 exipick: miscellaneous performance enhancements (~24% improvements)
1821
898d150f
PH
1822PH/57 Tidies in SMTP dialogue display in debug output: (i) It was not showing
1823 responses to authentication challenges, though it was showing the
1824 challenges; (ii) I've removed the CR characters from the debug output for
1825 SMTP output lines.
1826
46218253
PH
1827PH/58 Allow for the insertion of a newline as well as a space when a string
1828 is turned into more than one encoded-word during RFC 2047 encoding. The
1829 Sieve code now uses this.
1830
e97957bc
PH
1831PH/59 Added the following errors that can be detected in retry rules: mail_4xx,
1832 data_4xx, lost_connection, tls_required.
1833
81e509d7
PH
1834PH/60 When a VRFY deferred or FAILED, the log message rather than the user
1835 message was being sent as an SMTP response.
1836
3d240ff7
PH
1837PH/61 Add -l and -k options to exicyclog.
1838
b37c4101
PH
1839PH/62 When verifying, if an address was redirected to one new address, so that
1840 verification continued, and the new address failed or deferred after
1841 having set something in $address_data, the value of $address_data was not
1842 passed back to the ACL. This was different to the case when no
1843 redirection occurred. The value is now passed back in both cases.
1844
79378e0f
PH
1845PH/63 Changed the macro HAVE_LOGIN_CAP (see PH/41 for this release above) to
1846 HAVE_SETCLASSRESOURCES because there are different APIs in use that all
1847 use login_cap.h, so on its own it isn't the distinguishing feature. The
1848 new name refers directly to the setclassresources() function.
1849
e49c7bb4
PH
1850PH/65 Added configuration files for NetBSD3.
1851
d114ec46
PH
1852PH/66 Updated OS/Makefile-HP-UX for gcc 4.1.0 with HP-UX 11.
1853
f3d7df6c
PH
1854PH/67 Fixed minor infelicity in the sorting of addresses to ensure that IPv6
1855 is preferred over IPv4.
1856
715ab376
PH
1857PH/68 The bounce_return_message and bounce_return_body options were not being
1858 honoured for bounces generated during the reception of non-SMTP messages.
1859 In particular, this applied to messages rejected by the ACL. This bug has
1860 been fixed. However, if bounce_return_message is true and bounce_return_
1861 body is false, the headers that are returned for a non-SMTP message
1862 include only those that have been read before the error was detected.
1863 (In the case of an ACL rejection, they have all been read.)
1864
6b31b150
PH
1865PH/69 The HTML version of the specification is now built in a directory called
1866 spec_html instead of spec.html, because the latter looks like a path with
1867 a MIME-type, and this confuses some software.
1868
1869PH/70 Catch two compiler warnings in sieve.c.
1870
d515a917
PH
1871PH/71 Fixed an obscure and subtle bug (thanks Alexander & Matthias). The
1872 function verify_get_ident() calls ip_connect() to connect a socket, but
1873 if the "connect()" function timed out, ip_connect() used to close the
1874 socket. However, verify_get_ident() also closes the socket later, and in
1875 between Exim writes to the log, which may get opened at this point. When
1876 the socket was closed in ip_connect(), the log could get the same file
1877 descriptor number as the socket. This naturally causes chaos. The fix is
1878 not to close the socket in ip_connect(); the socket should be closed by
1879 the function that creates it. There was only one place in the code where
1880 this was missing, in the iplookup router, which I don't think anybody now
1881 uses, but I've fixed it anyway.
1882
9b8fadde
PH
1883PH/72 Make dns_again_means_nonexist apply to lookups using gethostbyname() as
1884 well as to direct DNS lookups. Otherwise the handling of names in host
1885 lists is inconsistent and therefore confusing.
1886
214e2000 1887
5de37277
PH
1888Exim version 4.60
1889-----------------
1890
cc38ddbf
PH
1891PH/01 Two changes to the default runtime configuration:
1892
1893 (1) Move the checks for relay_from_hosts and authenticated clients from
1894 after to before the (commented out) DNS black list checks.
1895
1896 (2) Add control=submission to the relay_from_hosts and authenticated
1897 clients checks, on the grounds that messages accepted by these
1898 statements are most likely to be submissions.
5de37277 1899
72fdd6ae
PH
1900PH/02 Several tidies to the handling of ${prvs and ${prvscheck:
1901
1902 (1) Generate an error if the third argument for the ${prvs expansion is
1903 not a single digit.
1904
1905 (2) Treat a missing third argument of ${prvscheck as if it were an empty
1906 string.
1907
1908 (3) Reset the variables that are obtained from the first argument of
1909 ${prvscheck and used in the second argument before leaving the code,
1910 because their memory is reclaimed, so using them afterwards may do
1911 silly things.
1912
1913 (4) Tidy up the code for expanding the arguments of ${prvscheck one by
1914 one (it's much easier than Tom thought :-).
1915
1916 (5) Because of (4), we can now allow for the use of $prvscheck_result
1917 inside the third argument.
cb9328de 1918
cb741023
PH
1919PH/03 For some reason, the default setting of PATH when running a command from
1920 a pipe transport was just "/usr/bin". I have changed it to
1921 "/bin:/usr/bin".
1922
f174f16e
PH
1923PH/04 SUPPORT_TRANSLATE_IP_ADDRESS and MOVE_FROZEN_MESSAGES did not cause
1924 anything to be listed in the output from -bV.
b2f5a032 1925
c25242d7
PH
1926PH/05 When a filter generated an autoreply, the entire To: header line was
1927 quoted in the delivery log line, like this:
1928
1929 => >A.N.Other <ano@some.domain> <original@ddress> ...
1930
1931 This has been changed so that it extracts the operative address. There
1932 may be more than one such address. If so, they are comma-separated, like
1933 this:
1934
1935 => >ano@some.domain,ona@other.domain <original@ddress> ...
1936
82c19f95
PH
1937PH/06 When a client host used a correct literal IP address in a HELO or EHLO
1938 command, (for example, EHLO [1.2.3.4]) and the client's IP address was
1939 not being looked up in the rDNS to get a host name, Exim was showing the
1940 IP address twice in Received: lines, even though the IP addresses were
1941 identical. For example:
1942
1943 Received: from [1.2.3.4] (helo=[1.2.3.4])
1944
1945 However, if the real host name was known, it was omitting the HELO data
1946 if it matched the actual IP address. This has been tidied up so that it
1947 doesn't show the same IP address twice.
1948
d7ffbc12
PH
1949PH/07 When both +timestamp and +memory debugging was on, the value given by
1950 $tod_xxx expansions could be wrong, because the tod_stamp() function was
1951 called by the debug printing, thereby overwriting the timestamp buffer.
1952 Debugging no longer uses the tod_stamp() function when +timestamp is set.
1953
9f526266
PH
1954PH/08 When the original message was included in an autoreply transport, it
1955 always said "this is a copy of the message, including all the headers",
1956 even if body_only or headers_only was set. It now gives an appropriate
1957 message.
1958
87fcc8b9
PH
1959PH/09 Applied a patch from the Sieve maintainer which:
1960
1961 o fixes some comments
1962 o adds the (disabled) notify extension core
1963 o adds some debug output for the result of if/elsif tests
1964 o points to the current vacation draft in the documentation
1965 and documents the missing references header update
1966
1967 and most important:
1968
1969 o fixes a bug in processing the envelope test (when testing
1970 multiple envelope elements, the last element determinted the
1971 result)
1972
456682f5
PH
1973PH/10 Exim was violating RFC 3834 ("Recommendations for Automatic Responses to
1974 Electronic Mail") by including:
1975
1976 Auto-submitted: auto-generated
1977
1978 in the messages that it generates (bounce messages and others, such as
1979 warnings). In the case of bounce messages for non-SMTP mesages, there was
1980 also a typo: it was using "Auto_submitted" (underscore instead of
1981 hyphen). Since every message generated by Exim is necessarily in response
1982 to another message, thes have all been changed to:
1983
1984 Auto-Submitted: auto-replied
1985
1986 in accordance with these statements in the RFC:
1987
1988 The auto-replied keyword:
1989
1990 - SHOULD be used on messages sent in direct response to another
1991 message by an automatic process,
1992
1993 - MUST NOT be used on manually-generated messages,
1994
1995 - MAY be used on Delivery Status Notifications (DSNs) and Message
1996 Disposition Notifications (MDNs),
1997
1998 - MUST NOT be used on messages generated by automatic or periodic
1999 processes, except for messages which are automatic responses to
2000 other messages.
2001
3e46c1aa
PH
2002PH/11 Added "${if def:sender_address {(envelope-from <$sender_address>)\n\t}}"
2003 to the default Received: header definition.
456682f5 2004
49826d12
PH
2005PH/12 Added log selector acl_warn_skipped (default on).
2006
eba0c039
PH
2007PH/13 After a successful wildlsearch lookup, discard the values of numeric
2008 variables because (a) they are in the wrong storage pool and (b) even if
2009 they were copied, it wouldn't work properly because of the caching.
2010
a0d6ba8a
PH
2011PH/14 Add check_rfc2047_length to disable enforcement of RFC 2047 length
2012 checking when decoding. Apparently there are clients that generate
2013 overlong encoded strings. Why am I not surprised?
2014
f0917727
PH
2015PH/15 If the first argument of "${if match_address" was not empty, but did not
2016 contain an "@" character, Exim crashed. Now it writes a panic log message
2017 and treats the condition as false.
2018
096fee00
PH
2019PH/16 In autoreply, treat an empty string for "once" the same as unset.
2020
024bd3c2
PH
2021PH/17 A further patch from the Sieve maintainer: "Introduce the new Sieve
2022 extension "envelope-auth". The code is finished and in agreement with
2023 other implementations, but there is no documentation so far and in fact,
2024 nobody wrote the draft yet. This extension is currently #undef'ed, thus
2025 not changing the active code.
2026
2027 Print executed "if" and "elsif" statements when debugging is used. This
2028 helps a great deal to understand what a filter does.
2029
2030 Document more things not specified clearly in RFC3028. I had all this
2031 sorted out, when out of a sudden new issues came to my mind. Oops."
2032
df199fec
PH
2033PH/18 Exim was not recognizing the "net-" search type prefix in match_ip lists
2034 (Bugzilla #53).
2035
d27f1df3
PH
2036PH/19 Exim expands the IPv6 address given to -bh to its full non-abbreviated
2037 canonical form (as documented). However, after a host name lookup from
2038 the IP address, check_host() was doing a simple string comparison with
2039 addresses acquired from the DNS when checking that the found name did
2040 have the original IP as one of its addresses. Since any found IPv6
2041 addresses are likely to be in abbreviated form, the comparison could
2042 fail. Luckily, there already exists a function for doing the comparison
2043 by converting both addresses to binary, so now that is used instead of
2044 the text comparison.
2045
96776534
PH
2046PH/20 There was another similar case to PH/19, when a complete host name was
2047 given in a host list; looking up its IP address could give an abbreviated
2048 form, whereas the current host's name might or might not be abbreviated.
2049 The same fix has been applied.
2050
5de37277 2051
9a799bc0
PH
2052Exim version 4.54
2053-----------------
2054
2055PH/01 The ${base62: operator adjusted itself to base 36 when BASE_62 was
2056 set to 36 (for Darwin and Cygwin), but the ${base62d: operator did not.
2057 It now does.
2058
99a4b039
PH
2059PH/02 Two minor problems detected in Cygwin: the os.{c,h} files had lost */ on
2060 the CVS lines, and there was a missing #if HAVE_IPV6 in host.c.
2061
2062PH/03 Typo: missing ".o" in src/pcre/Makefile.
2063
4b233853
PH
2064PH/04 Tighten up "personal" tests: Instead of testing for any "List-"
2065 header line, restrict the check to what is listed in RFCs 2369 and 2929.
2066 Also, for "Auto-Submitted", treat anything other than "no" as
2067 non-personal, in accordance with RFC 3834. (Previously it treated
2068 anything starting "auto-" as non-personal.)
2069
8857ccfd
PH
2070TF/01 The control=submission/name=... option had a problem with syntax
2071 errors if the name included a slash character. The /name= option
2072 now slurps the rest of the string, so it can include any characters
2073 but it must come last in the list of options (after /sender_retain
2074 or /domain=).
2075
433a2980
PH
2076PH/05 Some modifications to the interface to the fake nameserver for the new
2077 testing suite.
2078
3e46c1aa 2079
9a799bc0 2080
e3a311ba
TK
2081Exim version 4.53
2082-----------------
2083
2084TK/01 Added the "success_on_redirect" address verification option. See
2085 NewStuff for rationale and an example.
2086
13b685f9
PH
2087PH/01 Added support for SQLite, basic code supplied by David Woodhouse.
2088
395ff96d
PH
2089PH/02 Patch to exigrep to allow it to work on syslog lines.
2090
5b68f6e4
PH
2091PH/03 When creating an mbox file for a virus/spam scan, use fseek() instead of
2092 fread() to skip over the body file's header line, because in Cygwin the
2093 header line is locked and is inaccessible.
2094
1ab52c69
PH
2095PH/04 Added $message_exim_id, ultimately to replace $message_id (they will both
2096 co-exist for some time) to make it clear that it is the Exim ID that is
2097 referenced, not the Message-ID: header line.
2098
b07e6aa3
PH
2099PH/05 Replaced all Tom's calls to snprintf() with calls to the internal
2100 string_format() function, because snprintf() does not exist on all
2101 operating systems.
2102
254e032f
PH
2103PH/06 The use of forbid_filter_existstest now also locks out the use of the
2104 ${stat: expansion item.
2105
3af76a81
PH
2106PH/07 Changed "SMTP protocol violation: synchronization error" into "SMTP
2107 protocol synchronization error", to keep the pedants happy.
2108
2548ba04
PH
2109PH/08 Arrange for USE_INET_NTOA_FIX to be set in config.h for AIX systems as
2110 well as for IRIX systems, when gcc is being used. See the host.c source
2111 file for comments.
2112
b6c6011d
PH
2113PH/09 Installed latest Cygwin configuration files from the Cygwin maintainer.
2114
cf39cf57
PH
2115PH/10 Named domain lists were not working if used in a queue_smtp_domains
2116 setting.
2117
f1513293
PH
2118PH/11 Added support for the IGNOREQUOTA extension to LMTP, both to the lmtp
2119 transport and to the smtp transport in LMTP mode.
2120
727549a4
PH
2121TK/02 Remove one case of BASE64 error detection FTTB (undocumented anyway).
2122
af46795e
PH
2123PH/12 There was a missing call to search_tidyup() before the fork() in rda.c to
2124 run a filter in a subprocess. This could lead to confusion in subsequent
2125 lookups in the parent process. There should also be a search_tidyup() at
2126 the end of the subprocess.
2127
d7b47fd0
PH
2128PH/13 Previously, if "verify = helo" was set in an ACL, the condition was true
2129 only if the host matched helo_try_verify_hosts, which caused the
2130 verification to occur when the EHLO/HELO command was issued. The ACL just
2131 tested the remembered result. Now, if a previous verification attempt has
2132 not happened, "verify = helo" does it there and then.
2133
ee744174
JJ
2134JJ/01 exipick: added $message_exim_id variable (see 4.53-PH/04)
2135
b582ab87
PH
2136TK/03 Fix log output including CR from clamd.
2137
41a13e0a
PH
2138PH/14 A reference to $reply_address when Reply-to: was empty and From: did not
2139 exist provoked a memory error which could cause a segfault.
2140
f625cc5a
PH
2141PH/15 Installed PCRE 6.2
2142
2143PH/17 Defined BIND_8_COMPAT in the Darwin os.h file.
2144
21f7af35
PH
2145PH/18 Reversed 4.52/PH/17 because the HP-UX user found it wasn't the cause
2146 of the problem. Specifically, suggested +O2 rather than +O1 for the
2147 HP-UX compiler.
2148
31480e42
PH
2149PH/19 Added sqlite_lock_timeout option (David Woodhouse's patch).
2150
2d280592
PH
2151PH/20 If a delivery was routed to a non-standard port by means of an SRV
2152 record, the port was not correctly logged when the outgoing_port log
2153 selector was set (it logged the transort's default port).
2154
7cd1141b
PH
2155PH/21 Added support for host-specific ports to manualroute, queryprogram,
2156 fallback_hosts, and "hosts" in the smtp transport.
2157
2158PH/22 If the log selector "outgoing_port" is set, the port is now also given on
2159 host errors such as "Connection refused".
2160
750af86e
PH
2161PH/23 Applied a patch to fix problems with exim-4.52 while doing radius
2162 authentication with radiusclient 0.4.9:
2163
2164 - Error returned from rc_read_config was caught wrongly
2165 - Username/password not passed on to radius server due to wrong length.
2166
2167 The presumption is that some radiusclient API changes for 4.51/PH/17
2168 were not taken care of correctly. The code is still untested by me (my
2169 Linux distribution still has 0.3.2 of radiusclient), but it was
2170 contributed by a Radius user.
2171
2172PH/24 When doing a callout, the value of $domain wasn't set correctly when
2173 expanding the "port" option of the smtp transport.
2174
4304270b
TK
2175TK/04 MIME ACL: Fix buffer underrun that occurs when EOF condition is met
2176 while reading a MIME header. Thanks to Tom Hughes for a patch.
2177
750af86e
PH
2178PH/24 Include config.h inside local_scan.h so that configuration settings are
2179 available.
2180
64ffc24f
PH
2181PH/25 Make $smtp_command_argument available after all SMTP commands. This means
2182 that in an ACL for RCPT (for example), you can examine exactly what was
2183 received.
2184
5dd9625b
PH
2185PH/26 Exim was recognizing IPv6 addresses of the form [IPv6:....] in EHLO
2186 commands, but it was not correctly comparing the address with the actual
2187 client host address. Thus, it would show the EHLO address in Received:
2188 header lines when this was not necessary.
2189
5591031b
PH
2190PH/27 Added the % operator to ${eval:}.
2191
ba18e66a
PH
2192PH/28 Exim tries to create and chdir to its spool directory when it starts;
2193 it should be ignoring failures (because with -C, for example, it has lost
2194 privilege). It wasn't ignoring creation failures other than "already
2195 exists".
2196
9cec981f
PH
2197PH/29 Added "crypteq" to the list of supported features that Exim outputs when
2198 -bV or -d is used.
2199
aa2b5c79
PH
2200PH/30 Fixed (presumably very longstanding) bug in exim_dbmbuild: if it failed
2201 because an input line was too long, either on its own, or by virtue of
1509d3a8
PH
2202 too many continuations, the temporary file was not being removed, and the
2203 return code was incorrect.
aa2b5c79 2204
48a53b7f
PH
2205PH/31 Missing "BOOL" in function definition in filtertest.c.
2206
1c59d63b
PH
2207PH/32 Applied Sieve patches from the maintainer.
2208
671012da
TK
2209TK/05 Domainkeys: Accomodate for a minor API change in libdomainkeys 0.67.
2210
1509d3a8
PH
2211PH/33 Added "verify = not_blind".
2212
2213PH/34 There are settings for CHOWN_COMMAND and MV_COMMAND that can be used in
2214 Local/Makefile (with some defaults set). These are used in built scripts
2215 such as exicyclog, but they have never been used in the exim_install
2216 script (though there are many overriding facilities there). I have
2217 arranged that the exim_install script now takes note of these two
2218 settings.
2219
2220PH/35 Installed configuration files for Dragonfly.
2221
2fe1a124
PH
2222PH/36 When a locally submitted message by a trusted user did not contain a
2223 From: header, and the sender address was obtained from -f or from an SMTP
2224 MAIL command, and the trusted user did not use -F to supply a sender
2225 name, $originator_name was incorrectly used when constructing a From:
2226 header. Furthermore, $originator_name was used for submission mode
2227 messages from external hosts without From: headers in a similar way,
2228 which is clearly wrong.
2229
8800895a
PH
2230PH/37 Added control=suppress_local_fixups.
2231
ccfdb010
PH
2232PH/38 When log_selector = +received_sender was set, and the addition of the
2233 sender made the log line's construction buffer exactly full, or one byte
2234 less than full, an overflow happened when the terminating "\n" was
2235 subsequently added.
2236
1130bfb0
PH
2237PH/39 Added a new log selector, "unknown_in_list", which provokes a log entry
2238 when the result of a list match is failure because a DNS lookup failed.
2239
ebcb507f
PH
2240PH/40 RM_COMMAND is now used in the building process.
2241
c35e155c
PH
2242PH/41 Added a "distclean" target to the top-level Makefile; it deletes all
2243 the "build-* directories that it finds.
2244
95d1f782
PH
2245PH/42 (But a TF fix): In a domain list, Exim incorrectly matched @[] if the IP
2246 address in a domain literal was a prefix of an interface address.
2247
fd6de02e
PH
2248PH/43 (Again a TF fix): In the dnslookup router, do not apply widen_domains
2249 when verifying a sender address, unless rewrite_headers is false.
2250
58de37c5
PH
2251PH/44 Wrote a long comment about why errors_to addresses are verified as
2252 recipients, not senders.
2253
261cf466
TF
2254TF/01 Add missing LIBS=-lm to OS/Makefile-OpenBSD which was overlooked when
2255 the ratelimit ACL was added.
2256
3ee512ff
PH
2257PH/45 Added $smtp_command for the full command (cf $smtp_command_argument).
2258
e08c430f
PH
2259PH/46 Added extra information about PostgreSQL errors to the error string.
2260
bef5a11f
PH
2261PH/47 Added an interface to a fake DNS resolver for use by the new test suite,
2262 avoiding the need to install special zones in a real server. This is
2263 backwards compatible; if it can't find the fake resolver, it drops back.
2264 Thus, both old and new test suites can be run.
2265
7546de58
TF
2266TF/02 Added util/ratelimit.pl
2267
e5d5a95f
TF
2268TF/03 Minor fix to the ratelimit code to improve its behaviour in case the
2269 clock is set back in time.
2270
2e88a017
TF
2271TF/04 Fix the ratelimit support in exim_fixdb. Patch provided by Brian
2272 Candler <B.Candler@pobox.com>.
2273
a5f65aa4
TF
2274TF/05 The fix for PH/43 was not completely correct; widen_domains is always
2275 OK for addresses that are the result of redirections.
2276
e7726cbf
PH
2277PH/48 A number of further additions for the benefit of the new test suite,
2278 including a fake gethostbyname() that interfaces to the fake DNS resolver
2279 (see PH/47 above).
2280
a7fdad5b
TF
2281TF/06 The fix for widen_domains has also been applied to qualify_single and
2282 search_parents which are the other dnslookup options that can cause
2283 header rewrites.
2284
6af56900
PH
2285PH/49 Michael Haardt's randomized retrying, but as a separate retry parameter
2286 type ("H").
2287
0925ede6
PH
2288PH/50 Make never_users, trusted_users, admin_groups, trusted_groups expandable.
2289
66afa403
TF
2290TF/07 Exim produced the error message "an SRV record indicated no SMTP
2291 service" if it encountered an MX record with an empty target hostname.
2292 The message is now "an MX or SRV record indicated no SMTP service".
2293
0154e85a
TF
2294TF/08 Change PH/13 introduced the possibility that verify=helo may defer,
2295 if the DNS of the sending site is misconfigured. This is quite a
2296 common situation. This change restores the behaviour of treating a
2297 helo verification defer as a failure.
2298
16f12c76
PH
2299PH/51 If self=fail was set on a router, the bounce message did not include the
2300 actual error message.
2301
bbe902f0 2302
e5a9dba6
PH
2303Exim version 4.52
2304-----------------
2305
2306TF/01 Added support for Client SMTP Authorization. See NewStuff for details.
2307
22c3b60b
PH
2308PH/01 When a transport filter timed out in a pipe delivery, and the pipe
2309 command itself ended in error, the underlying message about the transport
2310 filter timeout was being overwritten with the pipe command error. Now the
2311 underlying error message should be appended to the second error message.
2312
06a9b4b5
PH
2313TK/01 Fix poll() being unavailable on Mac OSX 10.2.
2314
c1ac6996
PH
2315PH/02 Reduce the amount of output that "make" produces by default. Full output
2316 can still be requested.
2317
9c7a242c
PH
2318PH/03 The warning log line about a condition test deferring for a "warn" verb
2319 was being output only once per connection, rather than after each
2320 occurrence (because it was using the same function as for successful
2321 "warn" verbs). This seems wrong, so I have changed it.
2322
87ba3f5f
PH
2323TF/02 Two buglets in acl.c which caused Exim to read a few bytes of memory that
2324 it should not have, which might have caused a crash in the right
2325 circumstances, but probably never did.
2326
2327PH/04 Installed a modified version of Tony Finch's patch to make submission
2328 mode fix the return path as well as the Sender: header line, and to
2329 add a /name= option so that you can make the user's friendly name appear
2330 in the header line.
2331
29aba418
TF
2332TF/03 Added the control = fakedefer ACL modifier.
2333
fe0dab11
TF
2334TF/04 Added the ratelimit ACL condition. See NewStuff for details. Thanks to
2335 Mark Lowes for thorough testing.
870f6ba8 2336
11d337a4
TK
2337TK/02 Rewrote SPF support to work with libspf2 versions >1.2.0.
2338
2339TK/03 Merged latest SRS patch from Miles Wilton.
2340
415c8f3b
PH
2341PH/05 There's a shambles in IRIX6 - it defines EX_OK in unistd.h which conflicts
2342 with the definition in sysexits.h (which is #included earlier).
2343 Fortunately, Exim does not actually use EX_OK. The code used to try to
2344 preserve the sysexits.h value, by assumimg that macro definitions were
2345 scanned for macro replacements. I have been disabused of this notion,
2346 so now the code just undefines EX_OK before #including unistd.h.
11d337a4 2347
958541e9
PH
2348PH/06 There is a timeout for writing blocks of data, set by, e.g. data_timeout
2349 in the smtp transport. When a block could not be written in a single
2350 write() function, the timeout was being re-applied to each part-write.
2351 This seems wrong - if the receiver was accepting one byte at a time it
2352 would take for ever. The timeout is now adjusted when this happens. It
2353 doesn't have to be particularly precise.
2354
c206415f
TK
2355TK/04 Added simple SPF lookup method in EXPERIMENTAL_SPF. See NewStuff for
2356 details. Thanks to Chris Webb <chris@arachsys.com> for the patch!
2357
2a4be8f9
PH
2358PH/07 Added "fullpostmaster" verify option, which does a check to <postmaster>
2359 without a domain if the check to <postmaster@domain> fails.
2360
1cba11c5
SC
2361SC/01 Eximstats: added -xls and the ability to specify output files
2362 (patch written by Frank Heydlauf).
2363
2364SC/02 Eximstats: use FileHandles for outputing results.
2365
2366SC/03 Eximstats: allow any combination of xls, txt, and html output.
2367
2368SC/04 Eximstats: fixed display of large numbers with -nvr option
2369
2370SC/05 Eximstats: fixed merging of reports with empty tables.
2371
2372SC/06 Eximstats: added the -include_original_destination flag
2373
2374SC/07 Eximstats: removed tabs and trailing whitespace.
2375
1005d00e
TK
2376TK/05 Malware: Improve on aveserver error handling. Patch from Alex Miller.
2377
2378TK/06 MBOX spool code: Add real "From " MBOX separator line
2379 so the .eml file is really in mbox format (even though
2380 most programs do not really care). Patch from Alex Miller.
2381
2382TK/07 MBOX spool code: Add X-Envelope-From: and X-Envelope-To: headers.
2383 The latter is generated from $received_to and is only set if the
2384 message has one envelope recipient. SA can use these headers,
2385 obviously out-of-the-box. Patch from Alex Miller.
2386
9b4768fa
PH
2387PH/08 The ${def test on a variable was returning false if the variable's
2388 value was "0", contrary to what the specification has always said!
2389 The result should be true unless the variable is empty.
2390
2391PH/09 The syntax error of a character other than { following "${if
2392 def:variable_name" (after optional whitespace) was not being diagnosed.
2393 An expansion such as ${if def:sender_ident:{xxx}{yyy}} in which an
2394 accidental colon was present, for example, could give incorrect results.
2395
0d7eb84a
PH
2396PH/10 Tidied the code in a number of places where the st_size field of a stat()
2397 result is used (not including appendfile, where other changes are about
2398 to be made).
2399
2400PH/11 Upgraded appendfile so that quotas larger than 2G are now supported.
2401 This involved changing a lot of size variables from int to off_t. It
2402 should work with maildirs and everything.
2403
40727bee
TK
2404TK/08 Apply fix provided by Michael Haardt to prevent deadlock in case of
2405 spamd dying while we are connected to it.
2406
554d2369
TF
2407TF/05 Fixed a ${extract error message typo reported by Jeremy Harris
2408 <jgh@wizmail.org>
2409
1f922db1
PH
2410PH/12 Applied Alex Kiernan's patch for the API change for the error callback
2411 function for BDB 4.3.
2412
ef213c3b
PH
2413PH/13 Changed auto_thaw such that it does not apply to bounce messages.
2414
8ac170f3
PH
2415PH/14 Imported PCRE 6.0; this was more than just a trivial operation because
2416 the sources for PCRE have been re-arranged and more files are now
2417 involved.
2418
b1c749bb
PH
2419PH/15 The code I had for printing potentially long long variables in PH/11
2420 above was not the best (it lost precision). The length of off_t variables
2421 is now inspected at build time, and an appropriate printing format (%ld
c6c2dc1d
PH
2422 or %lld) is chosen and #defined by OFF_T_FMT. We also define LONGLONG_T
2423 to be "long long int" or "long int". This is needed for the internal
2424 formatting function string_vformat().
b1c749bb 2425
4aac9b49
PH
2426PH/16 Applied Matthew Newton's patch to exicyclog: "If log_file_path is set in
2427 the configuration file to be ":syslog", then the script "guesses" where
2428 the logs files are, rather than using the compiled in default. In our
2429 case the guess is not the same as the compiled default, so the script
2430 suddenly stopped working when I started to use syslog. The patch checks
2431 to see if log_file_path is "". If so, it attempts to read it from exim
2432 with no configuration file to get the compiled in version, before it
2433 falls back to the previous guessing code."
2434
294520c8
TK
2435TK/09 Added "prvs" and "prvscheck" expansion items. These help a lot with
2436 implementing BATV in an Exim configuration. See NewStuff for the gory
2437 details.
2438
5bd022fe
PH
2439PH/17 Applied Michael Haardt's patch for HP-UX, affecting only the os.h and
2440 Makefile that are specific to HP-UX.
2441
90e9ce59
PH
2442PH/18 If the "use_postmaster" option was set for a recipient callout together
2443 with the "random" option, the postmaster address was used as the MAIL
2444 FROM address for the random test, but not for the subsequent recipient
2445 test. It is now used for both.
2446
5ea81592
PH
2447PH/19 Applied Michael Haardt's patch to update Sieve to RFC3028bis. "The
2448 patch removes a few documentation additions to RFC 3028, because the
2449 latest draft now contains them. It adds the new en;ascii-case comparator
2450 and a new error check for 8bit text in MIME parts. Comparator and
2451 require names are now matched exactly. I enabled the subaddress
2452 extension, but it is not well tested yet (read: it works for me)."
2453
c6c2dc1d
PH
2454PH/20 Added macros for time_t as for off_t (see PH/15 above) and used them to
2455 rework some of the code of TK/09 above to avoid the hardwired use of
2456 "%lld" and "long long". Replaced the call to snprintf() with a call to
2457 string_vformat().
2458
fffffe4c
PH
2459PH/21 Added some other messages to those in 4.51/PH/42, namely "All relevant MX
2460 records point to non-existent hosts", "retry timeout exceeded", and
2461 "retry time not reached for any host after a long failure period".
ca02eafb 2462
9a26b6b2
PH
2463PH/22 Fixed some oversights/typos causing bugs when Exim is compiled with
2464 experimental DomainKeys support:
2465
2466 (1) The filter variables $n0-$n9 and $sn0-$sn9 were broken.
2467 (2) On an error such as an illegally used "control", the wrong name for
2468 the control was given.
2469
2470 These problems did NOT occur unless DomainKeys support was compiled.
2471
4aee0225
PH
2472PH/23 Added daemon_startup_retries and daemon_startup_sleep.
2473
32d668a5
PH
2474PH/24 Added ${if match_ip condition.
2475
8187c3f3
PH
2476PH/25 Put debug statements on either side of calls to EXIM_DBOPEN() for hints
2477 databases so that it will be absolutely obvious if a crash occurs in the
2478 DB library. This is a regular occurrence (often caused by mis-matched
2479 db.h files).
2480
ff790e47 2481PH/26 Insert a lot of missing (void) casts for functions such as chown(),
f1e894f3
PH
2482 chmod(), fcntl(), sscanf(), and other functions from stdio.h. These were
2483 picked up on a user's system that detects such things. There doesn't seem
2484 to be a gcc warning option for this - only an attribute that has to be
2485 put on the function's prototype. It seems that in Fedora Core 4 they have
2486 set this on a number of new functions. No doubt there will be more in due
2487 course.
ff790e47 2488
5417f6d1
PH
2489PH/27 If a dnslookup or manualroute router is set with verify=only, it need not
2490 specify a transport. However, if an address that was verified by such a
2491 router was the subject of a callout, Exim crashed because it tried to
2492 read the rcpt_include_affixes from the non-existent transport. Now it
2493 just assumes that the setting of that option is false. This bug was
2494 introduced by 4.51/PH/31.
2495
59cf8544
PH
2496PH/28 Changed -d+all to exclude +memory, because that information is very
2497 rarely of interest, but it makes the output a lot bigger. People tend to
2498 do -d+all out of habit.
2499
e7ad8a65
PH
2500PH/29 Removed support for the Linux-libc5 build, as it is obsolete and the
2501 code in os-type was giving problems when libc.so lives in lib64, like on
2502 x86_64 Fedora Core.
2503
ade42478
PH
2504PH/30 Exim's DNS code uses the original T_xxx names for DNS record times. These
2505 aren't the modern standard, and it seems that some systems' include files
2506 don't always have them. Exim was already checking for some of the newer
2507 ones like T_AAAA, and defining it itself. I've added checks for all the
2508 record types that Exim uses.
2509
182ad5cf
PH
2510PH/31 When using GnuTLS, if the parameters cache file did not exist, Exim was
2511 not automatically generating a new one, as it is supposed to. This
2512 prevented TLS from working. If the file did exist, but contained invalid
2513 data, a new version was generated, as expected. It was only the case of a
2514 non-existent file that was broken.
2515
b0d9fc80
TK
2516TK/10 Domainkeys: Fix a bug in verification that caused a crash in conjunction
2517 with a change in libdomainkeys > 0.64.
2518
2519TK/11 Domainkeys: Change the logic how the "testing" policy flag is retrieved
2520 from DNS. If the selector record carries the flag, it now has
2521 precedence over the domain-wide flag.
2522
2523TK/12 Cleared some compiler warnings related to SPF, SRS and DK code.
2524
47c7a64a
PH
2525PH/32 In mua_wrapper mode, if an smtp transport configuration error (such as
2526 the use of a port name that isn't defined in /etc/services) occurred, the
2527 message was deferred as in a normal delivery, and thus remained on the
2528 spool, instead of being failed because of the mua_wrapper setting. This
2529 is now fixed, and I tidied up some of the mua_wrapper messages at the
2530 same time.
2531
a388bce4
SC
2532SC/08 Eximstats: whilst parsing the mainlog(s), store information about
2533 the messages in a hash of arrays rather than using individual hashes.
2534 This is a bit cleaner and results in dramatic memory savings, albeit
2535 at a slight CPU cost.
2536
2537SC/09 Eximstats: added the -show_rt<list> and the -show_dt<list> flags
2538 as requested by Marc Sherman.
2539
2540SC/10 Eximstats: added histograms for user specified patterns as requested
2541 by Marc Sherman.
2542
0793e4ed
SC
2543SC/11 Eximstats: v1.43 - bugfix for pattern histograms with -h0 specified.
2544
c58b88df
PH
2545PH/33 Patch from the Cygwin maintainer to add "b" to all occurences of
2546 fopen() in the content-scanning modules that did not already have it.
2547
e7ad8a65 2548
7982096b
PH
2549Exim version 4.51
2550-----------------
2551
1a46a8c5
PH
2552TK/01 Added Yahoo DomainKeys support via libdomainkeys. See
2553 doc/experimental-spec.txt for details. (http://domainkeys.sf.net)
2554
2f079f46 2555TK/02 Fix ACL "control" statement not being available in MIME ACL.
1a46a8c5
PH
2556
2557TK/03 Fix ACL "regex" condition not being available in MIME ACL.
2558
2559PH/01 Installed a patch from the Sieve maintainer that allows -bf to be used
2560 to test Sieve filters that use "vacation".
2561
2562PH/02 Installed a slightly modified version of Nikos Mavrogiannopoulos' patch
2563 that changes the way the GnuTLS parameters are stored in the cache file.
2564 The new format can be generated externally. For backward compatibility,
2565 if the data in the cache doesn't make sense, Exim assumes it has read an
2566 old-format file, and it generates new data and writes a new file. This
2567 means that you can't go back to an older release without removing the
2568 file.
2569
2570PH/03 A redirect router that has both "unseen" and "one_time" set does not
2571 work if there are any delivery delays because "one_time" forces the
2572 parent to be marked "delivered", so its unseen clone is never tried
2573 again. For this reason, Exim now forbids the simultaneous setting of
2574 these two options.
2575
2576PH/04 Change 4.11/85 fixed an obscure bug concerned with addresses that are
2577 redirected to themselves ("homonym" addresses). Read the long ChangeLog
2578 entry if you want to know the details. The fix, however, neglected to
2579 consider the case when local delivery batching is involved. The test for
2580 "previously delivered" was not happening when checking to see if an
2581 address could be batched with a previous (undelivered) one; under
2582 certain circumstances this could lead to multiple deliveries to the same
c2c19e9d 2583 address.
1a46a8c5
PH
2584
2585PH/05 Renamed the macro SOCKLEN_T as EXIM_SOCKLEN_T because AIX uses SOCKLEN_T
2586 in its include files, and this causes problems building Exim.
2587
2588PH/06 A number of "verify =" ACL conditions have no options (e.g. verify =
2589 header_syntax) but Exim was just ignoring anything given after a slash.
2590 In particular, this caused confusion with an attempt to use "verify =
2591 reverse_host_lookup/defer_ok". An error is now given when options are
2592 supplied for verify items that do not have them. (Maybe reverse_host_
2593 lookup should have a defer_ok option, but that's a different point.)
2594
2595PH/07 Increase the size of the buffer for incoming SMTP commands from 512 (as
2596 defined by RFC 821) to 2048, because there were problems with some AUTH
2597 commands, and RFC 1869 says the size should be increased for extended
2598 SMTP commands that take arguments.
2599
2600PH/08 Added ${dlfunc dynamically loaded function for expansion (code from Tony
2601 Finch).
2602
2603PH/09 Previously, an attempt to use ${perl when it wasn't compiled gave an
2604 "unknown" error; now it says that the functionality isn't in the binary.
8d67ada3 2605
49c2d5ea
PH
2606PH/10 Added a nasty fudge to try to recognize and flatten LDAP passwords in
2607 an address' error message when a string expansion fails (syntax or
f331f3b6
PH
2608 whatever). Otherwise the password may appear in the log. Following change
2609 PH/42 below, there is no longer a chance of it appearing in a bounce
2610 message.
49c2d5ea 2611
bf759a8b
PH
2612PH/11 Installed exipick version 20050225.0 from John Jetmore.
2613
83364d30
PH
2614PH/12 If the last host in a fallback_hosts list was multihomed, only the first
2615 of its addresses was ever tried. (Bugzilla bug #2.)
2616
7999bbd7
PH
2617PH/13 If "headers_add" in a transport didn't end in a newline, Exim printed
2618 the result incorrectly in the debug output. (It correctly added a newline
2619 to what was transported.)
2620
7dbf77c9
PH
2621TF/01 Added $received_time.
2622
74e0617f
PH
2623PH/14 Modified the default configuration to add an acl_smtp_data ACL, with
2624 commented out examples of how to interface to a virus scanner and to
2625 SpamAssassin. Also added commented examples of av_scanner and
2626 spamd_address settings.
2627
2f079f46
PH
2628PH/15 Further to TK/02 and TK/03 above, tidied up the tables of what conditions
2629 and controls are allowed in which ACLs. There were a couple of minor
2630 errors. Some of the entries in the conditions table (which is a table of
2631 where they are NOT allowed) were getting very unwieldy; rewrote them as a
2632 negation of where the condition IS allowed.
2633
8c841523
PH
2634PH/16 Installed updated OS/os.c-cygwin from the Cygwin maintainer.
2635
7766a4f0
PH
2636PH/17 The API for radiusclient changed at release 0.4.0. Unfortunately, the
2637 header file does not have a version number, so I've had to invent a new
2638 value for RADIUS_LIB_TYPE, namely "RADIUSCLIENTNEW" to request the new
2639 API. The code is untested by me (my Linux distribution still has 0.3.2 of
2640 radiusclient), but it was contributed by a Radius user.
2641
8b417f2c
PH
2642PH/18 Installed Lars Mainka's patch for the support of CRL collections in
2643 files or directories, for OpenSSL.
2644
901f42cb
PH
2645PH/19 When an Exim process that is running as root has to create an Exim log
2646 file, it does so in a subprocess that runs as exim:exim so as to get the
2647 ownership right at creation (otherwise, other Exim processes might see
2648 the file with the wrong ownership). There was no test for failure of this
2649 fork() call, which would lead to the process getting stuck as it waited
2650 for a non-existent subprocess. Forks do occasionally fail when resources
2651 run out. I reviewed all the other calls to fork(); they all seem to check
2652 for failure.
2653
f9b9210e
PH
2654PH/20 When checking for unexpected SMTP input at connect time (before writing
2655 the banner), Exim was not dealing correctly with a non-positive return
2656 from the read() function. If the client had disconnected by this time,
2657 the result was a log entry for a synchronization error with an empty
2658 string after "input=" when read() returned zero. If read() returned -1
2659 (an event I could not check), uninitialized data bytes were printed.
2660 There were reports of junk text (parts of files, etc) appearing after
2661 "input=".
2662
54cdb463
PH
2663PH/21 Added acl_not_smtp_mime to allow for MIME scanning for non-SMTP messages.
2664
cf00dad6
PH
2665PH/22 Added support for macro redefinition, and (re)definition in between
2666 driver and ACL definitions.
2667
acb1b346
PH
2668PH/23 The cyrus_sasl authenticator was expanding server_hostname, but then
2669 forgetting to use the resulting value; it was using the unexpanded value.
2670
c5ddb310
PH
2671PH/24 The cyrus_sasl authenticator was advertising mechanisms for which it
2672 hadn't been configured. The fix is from Juergen Kreileder, who
2673 understands it better than I do:
2674
2675 "Here's what I see happening with three configured cyrus_sasl
2676 authenticators configured (plain, login, cram-md5):
2677
2678 On startup auth_cyrus_sasl_init() gets called for each of these.
2679 This means three calls to sasl_listmech() without a specified mech_list.
2680 => SASL tests which mechs of all available mechs actually work
2681 => three warnings about OTP not working
2682 => the returned list contains: plain, login, cram-md5, digest-md5, ...
2683
2684 With the patch, sasl_listmech() also gets called three times. But now
2685 SASL's mech_list option is set to the server_mech specified in the the
2686 authenticator. Or in other words, the answer from sasl_listmech()
2687 gets limited to just the mech you're testing for (which is different
2688 for each call.)
2689 => the return list contains just 'plain' or 'login', 'cram-md5' or
2690 nothing depending on the value of ob->server_mech.
2691
2692 I've just tested the patch: Authentication still works fine,
2693 unavailable mechs specified in the exim configuration are still
2694 caught, and the auth.log warnings about OTP are gone."
2695
31619da6
PH
2696PH/25 When debugging is enabled, the contents of the command line are added
2697 to the debugging output, even when log_selector=+arguments is not
2698 specified.
2699
bebaf0fc
PH
2700PH/26 Change scripts/os-type so that when "uname -s" returns just "GNU", the
2701 answer is "GNU", and only if the return is "GNU/something" is the answer
2702 "Linux".
2703
475fe28a
PH
2704PH/27 $acl_verify_message is now set immediately after the failure of a
2705 verification in an ACL, and so is available in subsequent modifiers. In
2706 particular, the message can be preserved by coding like this:
2707
2708 warn !verify = sender
2709 set acl_m0 = $acl_verify_message
2710
2711 Previously, $acl_verify_message was set only while expanding "message"
2712 and "log_message" when a very denied access.
2713
7e8bec7a
PH
2714PH/28 Modified OS/os.c-Linux with
2715
2716 -#ifndef OS_LOAD_AVERAGE
2717 +#if !defined(OS_LOAD_AVERAGE) && defined(__linux__)
2718
2719 to make Exim compile on kfreebsd-gnu. (I'm totally confused about the
2720 nomenclature these days.)
2721
e4a89c47
PH
2722PH/29 Installed patch from the Sieve maintainer that adds the options
2723 sieve_useraddress and sieve_subaddress to the redirect router.
2724
5ca2a9a1
PH
2725PH/30 In these circumstances:
2726 . Two addresses routed to the same list of hosts;
2727 . First host does not offer TLS;
2728 . First host accepts first address;
2729 . First host gives temporary error to second address;
2730 . Second host offers TLS and a TLS session is established;
2731 . Second host accepts second address.
2732 Exim incorrectly logged both deliveries with the TLS parameters (cipher
2733 and peerdn, if requested) that were in fact used only for the second
2734 address.
7e8bec7a 2735
c688b954
PH
2736PH/31 When doing a callout as part of verifying an address, Exim was not paying
2737 attention to any local part prefix or suffix that was matched by the
2738 router that accepted the address. It now behaves in the same way as it
2739 does for delivery: the affixes are removed from the local part unless
2740 rcpt_include_affixes is set on the transport.
2741
fed77020
PH
2742PH/32 Add the sender address, as F=<...>, to the log line when logging a
2743 timeout during the DATA phase of an incoming message.
2744
7fe1560f
PH
2745PH/33 Sieve envelope tests were broken for match types other than :is. I have
2746 applied a patch sanctioned by the Sieve maintainer.
c688b954 2747
ebb6e6d5
PH
2748PH/34 Change 4.50/80 broke Exim in that it could no longer handle cases where
2749 the uid or gid is negative. A case of a negative gid caused this to be
2750 noticed. The fix allows for either to be negative.
2751
9c4e8f60
PH
2752PH/35 ACL_WHERE_MIME is now declared unconditionally, to avoid too much code
2753 clutter, but the tables that are indexed by ACL_WHERE_xxx values had been
2754 overlooked.
2755
2756PH/36 The change PH/12 above was broken. Fixed it.
2757
d7174846
PH
2758PH/37 Exim used to check for duplicate addresses in the middle of routing, on
2759 the grounds that routing the same address twice would always produce the
2760 same answer. This might have been true once, but it is certainly no
2761 longer true now. Routing a child address may depend on the previous
2762 routing that produced that child. Some complicated redirection strategies
2763 went wrong when messages had multiple recipients, and made Exim's
2764 behaviour dependent on the order in which the addresses were given.
2765
2766 I have moved the duplicate checking until after the routing is complete.
2767 Exim scans the addresses that are assigned to local and remote
2768 transports, and removes any duplicates. This means that more work will be
2769 done, as duplicates will always all be routed, but duplicates are
2770 presumably rare, so I don't expect this is of any significance.
2771
2772 For deliveries to pipes, files, and autoreplies, the duplicate checking
2773 still happens during the routing process, since they are not going to be
2774 routed further.
2775
cfe75fc3
PH
2776PH/38 Installed a patch from Ian Freislich, with the agreement of Tom Kistner.
2777 It corrects a timeout issue with spamd. This is Ian's comment: "The
2778 background is that sometimes spamd either never reads data from a
2779 connection it has accepted, or it never writes response data. The exiscan
2780 spam.[ch] uses a 3600 second timeout on spamd socket reads, further, it
2781 blindly assumes that writes won't block so it may never time out."
2782
be22d70e
PH
2783PH/39 Allow G after quota size as well as K and M.
2784
0612b098
PH
2785PH/40 The value set for $authenticated_id in an authenticator may not contain
2786 binary zeroes or newlines because the value is written to log lines and
2787 to spool files. There was no check on this. Now the value is run through
2788 the string_printing() function so that such characters are converted to
2789 printable escape sequences.
2790
2e0c1448
PH
2791PH/41 $message_linecount is a new variable that contains the total number of
2792 lines in the message. Compare $body_linecount, which is the count for the
2793 body only.
2794
447d236c
PH
2795PH/42 Exim no longer gives details of delivery errors for specific addresses in
2796 bounce and delay warning messages, except in certain special cases, which
2797 are as follows:
2798
2799 (a) An SMTP error message from a remote host;
2800 (b) A message specified in a :fail: redirection;
2801 (c) A message specified in a "fail" command in a system filter;
2802 (d) A message specified in a FAIL return from the queryprogram router;
2803 (e) A message specified by the cannot_route_message router option.
2804
2805 In these cases only, Exim does include the error details in bounce and
2806 warning messages. There are also a few cases where bland messages such
2807 as "unrouteable address" or "local delivery error" are given.
2808
d20976dc
PH
2809PH/43 $value is now also set for the "else" part of a ${run expansion.
2810
f656d135
PH
2811PH/44 Applied patch from the Sieve maintainer: "The vacation draft is still
2812 being worked on, but at least Exim now implements the latest version to
2813 play with."
2814
2e2a30b4
PH
2815PH/45 In a pipe transport, although a timeout while waiting for the pipe
2816 process to complete was treated as a delivery failure, a timeout while
2817 writing the message to the pipe was logged, but erroneously treated as a
2818 successful delivery. Such timeouts include transport filter timeouts. For
2819 consistency with the overall process timeout, these timeouts are now
2820 treated as errors, giving rise to delivery failures by default. However,
2821 there is now a new Boolean option for the pipe transport called
2822 timeout_defer, which, if set TRUE, converts the failures into defers for
2823 both kinds of timeout. A transport filter timeout is now identified in
2824 the log output.
2825
9176e9f0
PH
2826PH/46 The "scripts/Configure-config.h" script calls "make" at one point. On
2827 systems where "make" and "gmake" are different, calling "gmake" at top
2828 level broke things. I've arranged for the value of $(MAKE) to be passed
2829 from the Makefile to this script so that it can call the same version of
2830 "make".
2831
7982096b 2832
bbe902f0
PH
2833A note about Exim versions 4.44 and 4.50
2834----------------------------------------
2835
2836Exim 4.50 was meant to be the next release after 4.43. It contains a lot of
2837changes of various kinds. As a consequence, a big documentation update was
2838needed. This delayed the release for rather longer than seemed good, especially
2839in the light of a couple of (minor) security issues. Therefore, the changes
2840that fixed bugs were backported into 4.43, to create a 4.44 maintenance
2841release. So 4.44 and 4.50 are in effect two different branches that both start
2842from 4.43.
2843
2844I have left the 4.50 change log unchanged; it contains all the changes since
28454.43. The change log for 4.44 is below; many of its items are identical to
2846those for 4.50. This seems to be the most sensible way to preserve the
2847historical information.
2848
2849
f7b63901 2850Exim version 4.50
495ae4b0
PH
2851-----------------
2852
5fe762f6
PH
2853 1. Minor wording change to the doc/README.SIEVE file.
2854
139059f6 2855 2. Change 4.43/35 introduced a bug: if quota_filecount was set, the
5fe762f6 2856 computation of the current number of files was incorrect.
495ae4b0 2857
7086e875
PH
2858 3. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
2859 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
2860 place.
2861
35af9f61
PH
2862 4. Give more explanation in the error message when the command for a transport
2863 filter fails to execute.
2864
b668c215
PH
2865 5. There are several places where Exim runs a non-Exim command in a
2866 subprocess. The SIGUSR1 signal should be disabled for these processes. This
2867 was being done only for the command run by the queryprogram router. It is
2868 now done for all such subprocesses. The other cases are: ${run, transport
2869 filters, and the commands run by the lmtp and pipe transports.
2870
a494b1e1
PH
2871 6. Added CONFIGURE_GROUP build-time option.
2872
2873 7. Some older OS have a limit of 256 on the maximum number of file
2874 descriptors. Exim was using setrlimit() to set 1000 as a large value
2875 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
2876 systems. I've change it so that if it can't get 1000, it tries for 256.
35edf2ff 2877
c5fcb476
PH
2878 8. "control=submission" was allowed, but had no effect, in a DATA ACL. This
2879 was an oversight, and furthermore, ever since the addition of extra
2880 controls (e.g. 4.43/32), the checks on when to allow different forms of
2881 "control" were broken. There should now be diagnostics for all cases when a
2882 control that does not make sense is encountered.
2883
69358f02
PH
2884 9. Added the /retain_sender option to "control=submission".
2885
5be20824
PH
288610. $recipients is now available in the predata ACL (oversight).
2887
eb2c0248
PH
288811. Tidy the search cache before the fork to do a delivery from a message
2889 received from the command line. Otherwise the child will trigger a lookup
2890 failure and thereby defer the delivery if it tries to use (for example) a
2891 cached ldap connection that the parent has called unbind on.
2892
2a3eea10
PH
289312. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
2894 of $address_data from the recipient verification was clobbered by the
2895 sender verification.
2896
289713. The value of address_data from a sender verification is now available in
2898 $sender_address_data in subsequent conditions in the ACL statement.
2899
23c7ff99
PH
290014. Added forbid_sieve_filter and forbid_exim_filter to the redirect router.
2901
4deaf07d
PH
290215. Added a new option "connect=<time>" to callout options, to set a different
2903 connection timeout.
2904
926e1192
PH
290516. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
2906 was its contents. (It was OK if the option was not defined at all.)
2907
650edc6f
PH
290817. A "Completed" log line is now written for messages that are removed from
2909 the spool by the -Mrm option.
2910
2c7db3f5
PH
291118. New variables $sender_verify_failure and $recipient_verify_failure contain
2912 information about exactly what failed.
2913
3d235903
PH
291419. Added -dd to debug only the daemon process.
2915
7c7ad977
PH
291620. Incorporated Michael Haardt's patch to ldap.c for improving the way it
2917 handles timeouts, both on the server side and network timeouts. Renamed the
2918 CONNECT parameter as NETTIMEOUT (but kept the old name for compatibility).
2919
981756db
PH
292021. The rare case of EHLO->STARTTLS->HELO was setting the protocol to "smtp".
2921 It is now set to "smtps".
2922
d4eb88df
PH
292322. $host_address is now set to the target address during the checking of
2924 ignore_target_hosts.
2925
292623. When checking ignore_target_hosts for an ipliteral router, no host name was
2927 being passed; this would have caused $sender_host_name to have been used if
2928 matching the list had actually called for a host name (not very likely,
2929 since this list is usually IP addresses). A host name is now passed as
2930 "[x.x.x.x]".
2931
7d468ab8
PH
293224. Changed the calls that set up the SIGCHLD handler in the daemon to use the
2933 code that specifies a non-restarting handler (typically sigaction() in
2934 modern systems) in an attempt to fix a rare and obscure crash bug.
2935
293625. Narrowed the window for a race in the daemon that could cause it to ignore
2937 SIGCHLD signals. This is not a major problem, because they are used only to
2938 wake it up if nothing else does.
2939
62c0818f
PH
294026. A malformed maildirsize file could cause Exim to calculate negative values
2941 for the mailbox size or file count. Odd effects could occur as a result.
2942 The maildirsize information is now recalculated if the size or filecount
2943 end up negative.
2944
26034054
PH
294527. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
2946 support for a long time. Removed HAVE_SYS_VFS_H.
2947
af66f652
PH
294828. Installed the latest version of exipick from John Jetmore.
2949
90af77f4
PH
295029. In an address list, if the pattern was not a regular expression, an empty
2951 subject address (from a bounce message) matched only if the pattern was an
2952 empty string. Non-empty patterns were not even tested. This was the wrong
2953 because it is perfectly reasonable to use an empty address as part of a
2954 database query. An empty address is now tested by patterns that are
2955 lookups. However, all the other forms of pattern expect the subject to
2956 contain a local part and a domain, and therefore, for them, an empty
2957 address still always fails if the pattern is not itself empty.
2958
d8ef3577
PH
295930. Exim went into a mad DNS loop when attempting to do a callout where the
2960 host was specified on an smtp transport, and looking it up yielded more
2961 than one IP address.
2962
5cb8cbc6
PH
296331. Re-factored the code for checking spool and log partition space into a
2964 function that finds that data and another that does the check. The former
2965 is then used to implement four new variables: $spool_space, $log_space,
2966 $spool_inodes, and $log_inodes.
2967
14702f5b
PH
296832. The RFC2047 encoding function was originally intended for short strings
2969 such as real names; it was not keeping to the 75-character limit for
2970 encoded words that the RFC imposes. It now respects the limit, and
2971 generates multiple encoded words if necessary. To be on the safe side, I
2972 have increased the buffer size for the ${rfc2047: expansion operator from
2973 1024 to 2048 bytes.
2974
063b1e99
PH
297533. It is now permitted to omit both strings after an "if" condition; if the
2976 condition is true, the result is "true". As before, when the second string
2977 is omitted, a false condition yields an empty string. This makes it less
2978 cumbersome to write custom ACL and router conditions.
2979
652e1b65
PH
298034. Failure to deliver a bounce message always caused it to be frozen, even if
2981 there was an errors_to setting on the router. The errors_to setting is now
2982 respected.
2983
6f0c9a4f
PH
298435. If an IPv6 address is given for -bh or -bhc, it is now converted to the
2985 canonical form (fully expanded) before being placed in
2986 $sender_host_address.
2987
33397d19
PH
298836. The table in the code that translates DNS record types into text (T_A to
2989 "A" for instance) was missing entries for NS and CNAME. It is just possible
2990 that this could have caused confusion if both these types were looked up
2991 for the same domain, because the text type is used as part of Exim's
2992 per-process caching. But the chance of anyone hitting this buglet seems
2993 very small.
2994
7bb56e1f
PH
299537. The dnsdb lookup has been extended in a number of ways.
2996
2997 (1) There is a new type, "zns", which walks up the domain tree until it
2998 finds some nameserver records. It should be used with care.
2999
ea3bc19b
PH
3000 (2) There is a new type, "mxh", which is like "mx" except that it returns
3001 just the host names, not the priorities.
3002
3003 (3) It is now possible to give a list of domains (or IP addresses) to be
ff4dbb19
PH
3004 looked up. The behaviour when one of the lookups defers can be
3005 controlled by a keyword.
7bb56e1f 3006
ea3bc19b 3007 (4) It is now possible to specify the separator character for use when
7bb56e1f 3008 multiple records are returned.
33397d19 3009
0bcb2a0e
PH
301038. The dnslists ACL condition has been extended: it is now possible to supply
3011 a list of IP addresses and/or domains to be looked up in a particular DNS
3012 domain.
3013
2ac0e484
PH
301439. Added log_selector=+queue_time_overall.
3015
4e1fde53
PH
301640. When running the queue in the test harness, wait just a tad after forking a
3017 delivery process, to get repeatability of debugging output.
3018
de365ded
PH
301941. Include certificate and key file names in error message when GnuTLS fails
3020 to set them up, because the GnuTLS error message doesn't include the name
3021 of the failing file when there is a problem reading it.
3022
f05da2e8
PH
302342. Allow both -bf and -bF in the same test run.
3024
d6453af2
PH
302543. Did the same fix as 41 above for OpenSSL, which had the same infelicity.
3026
f7b63901
PH
302744. The "Exiscan patch" is now merged into the mainline Exim source.
3028
302945. Sometimes the final signoff response after QUIT could fail to get
3030 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3031 < 0 before doing a fflush(). This bug looks as though it goes back to the
3032 introduction of TLS in release 3.20, but "sometimes" must have been rare
3033 because the tests only now provoked it.
3034
a444213a
PH
303546. Reset the locale to "C" after calling embedded Perl, in case it was changed
3036 (this can affect the format of dates).
3037
0ec020ea
PH
303847. exim_tidydb, when checking for the continued existence of a message for
3039 which it has found a message-specific retry record, was not finding
3040 messages that were in split spool directories. Consequently, it was
3041 deleting retry records that should have stayed in existence.
3042
b1206957
PH
304348. Steve fixed some bugs in eximstats.
3044
304549. The SPA authentication driver was not abandoning authentication and moving
3046 on to the next authenticator when an expansion was forced to fail,
3047 contradicting the general specification for all authenticators. Instead it
3048 was generating a temporary error. It now behaves as specified.
3049
26dd5a95
PH
305050. The default ordering of permitted cipher suites for GnuTLS was pessimal
3051 (the order specifies the preference for clients). The order is now AES256,
3052 AES128, 3DES, ARCFOUR128.
3053
343b2385
PH
305451. Small patch to Sieve code - explicitly set From: when generating an
3055 autoreply.
3056
1c5466b9
PH
305752. Exim crashed if a remote delivery caused a very long error message to be
3058 recorded - for instance if somebody sent an entire SpamAssassin report back
3059 as a large number of 550 error lines. This bug was coincidentally fixed by
3060 increasing the size of one of Exim's internal buffers (big_buffer) that
3061 happened as part of the Exiscan merge. However, to be on the safe side, I
3062 have made the code more robust (and fixed the comments that describe what
3063 is going on).
3064
55ee9ee3
PH
306553. Now that there can be additional text after "Completed" in log lines (if
3066 the queue_time_overall log selector is set), a one-byte patch to exigrep
3067 was needed to allow it to recognize "Completed" as not the last thing in
3068 the line.
3069
d38f8232
PH
307054. The LDAP lookup was not handling a return of LDAP_RES_SEARCH_REFERENCE. A
3071 patch that reportedly fixes this has been added. I am not expert enough to
3072 create a test for it. This is what the patch creator wrote:
3073
3074 "I found a little strange behaviour of ldap code when working with
3075 Windows 2003 AD Domain, where users was placed in more than one
3076 Organization Units. When I tried to give exim partial DN, the exit code
3077 of ldap_search was unknown to exim because of LDAP_RES_SEARCH_REFERENCE.
3078 But simultaneously result of request was absolutely normal ldap result,
3079 so I produce this patch..."
3080
3295e65b
PH
3081 Later: it seems that not all versions of LDAP support LDAP_RES_SEARCH_
3082 REFERENCE, so I have modified the code to exclude the patch when that macro
3083 is not defined.
3084
7102e136
PH
308555. Some experimental protocols are using DNS PTR records for new purposes. The
3086 keys for these records are domain names, not reversed IP addresses. The
b975ba52
PH
3087 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3088 leaves it alone. Component reversal etc. now happens only for IP addresses.
ea3a6f44 3089 CAN-2005-0021
7102e136 3090
3ca0ba97
PH
309156. Improve error message when ldap_search() fails in OpenLDAP or Solaris LDAP.
3092
c2bcbe20
PH
309357. Double the size of the debug message buffer (to 2048) so that more of very
3094 long debug lines gets shown.
3095
18ce445d
PH
309658. The exicyclog utility now does better if the number of log files to keep
3097 exceeds 99. In this case, it numbers them 001, 002 ... instead of 01, 02...
3098
1f5b4c3d
PH
309959. Two changes related to the smtp_active_hostname option:
3100
3101 (1) $smtp_active_hostname is now available as a variable.
3102 (2) The default for smtp_banner uses $smtp_active_hostname instead
3103 of $primary_hostname.
3104
b975ba52
PH
310560. The host_aton() function is supposed to be passed a string that is known
3106 to be a valid IP address. However, in the case of IPv6 addresses, it was
3107 not checking this. This is a hostage to fortune. Exim now panics and dies
3108 if the condition is not met. A case was found where this could be provoked
85b87bc2
PH
3109 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3110 components; fortuitously, this particular loophole had already been fixed
3111 by change 4.50/55 above.
3112
3113 If there are any other similar loopholes, the new check in host_aton()
3114 itself should stop them being exploited. The report I received stated that
3115 data on the command line could provoke the exploit when Exim was running as
3116 exim, but did not say which command line option was involved. All I could
3117 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3118 running as the user.
ea3a6f44 3119 CAN-2005-0021
85b87bc2
PH
3120
312161. There was a buffer overflow vulnerability in the SPA authentication code
3122 (which came originally from the Samba project). I have added a test to the
3123 spa_base64_to_bits() function which I hope fixes it.
ea3a6f44 3124 CAN-2005-0022
b975ba52 3125
17ffcae7
PH
312662. Configuration update for GNU/Hurd and variations. Updated Makefile-GNU and
3127 os.h-GNU, and added configuration files for GNUkFreeBSD and GNUkNetBSD.
3128
d95f9fdb
PH
312963. The daemon start-up calls getloadavg() while still root for those OS that
3130 need the first call to be done as root, but it missed one case: when
3131 deliver_queue_load_max is set with deliver_drop_privilege. This is
3132 necessary for the benefit of the queue runner, because there is no re-exec
3133 when deliver_drop_privilege is set.
3134
86b8287f
PH
313564. A call to exiwhat cut short delays set up by "delay" modifiers in ACLs.
3136 This has been fixed.
3137
60dc5e56
PH
313865. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3139 was in use, was not putting the data itself into the right store pool;
3140 consequently, it could be overwritten for a subsequent message in the same
3141 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3142 the caching.)
3143
533244af
PH
314466. Added hosts_max_try_hardlimit to the smtp transport, default 50.
3145
a5a28604
PH
314667. The string_is_ip_address() function returns 0, 4, or 6, for "no an IP
3147 address", "IPv4 address", and "IPv6 address", respectively. Some calls of
3148 the function were treating the return as a boolean value, which happened to
3149 work because 0=false and not-0=true, but is not correct code.
3150
7e634d24
PH
315168. The host_aton() function was not handling scoped IPv6 addresses (those
3152 with, for example, "%eth0" on the end) correctly.
3153
3e11c26b
PH
315469. Fixed some compiler warnings in acl.c for the bitmaps specified with
3155 negated items (that is, ~something) in unsigned ints. Some compilers
3156 apparently mutter when there is no cast.
3157
6729cf78
PH
315870. If an address verification called from an ACL failed, and did not produce a
3159 user-specific message (i.e. there was only a "system" message), nothing was
3160 put in $acl_verify_message. In this situation, it now puts the system
3161 message there.
3162
00f00ca5
PH
316371. Change 4.23/11 added synchronization checking at the start of an SMTP
3164 session; change 4.31/43 added the unwanted input to the log line - except
3165 that it did not do this in the start of session case. It now does.
3166
c9bdd01c
PH
316772. After a timeout in a callout SMTP session, Exim still sent a QUIT command.
3168 This is wrong and can cause the other end to generate a synchronization
3169 error if it is another Exim or anything else that does the synchronization
3170 check. A QUIT command is no longer sent after a timeout.
3171
d43194df
PH
317273. $host_lookup_deferred has been added, to make it easier to detect DEFERs
3173 during host lookups.
3174
fe5b5d0b
PH
317574. The defer_ok option of callout verification was not working if it was used
3176 when verifying addresses in header lines, that is, for this case:
3177
3178 verify = header_sender/callout=defer_ok
3179
76a2d7ba
PH
318075. A backgrounded daemon closed stdin/stdout/stderr on entry; this meant that
3181 those file descriptors could be used for SMTP connections. If anything
3182 wrote to stderr (the example that came up was "warn" in embedded Perl), it
3183 could be sent to the SMTP client, causing chaos. The daemon now opens
3184 stdin, stdout, and stderr to /dev/null when it puts itself into the
3185 background.
3186
318776. Arrange for output from Perl's "warn" command to be written to Exim's main
3188 log by default. The user can override this with suitable Perl magic.
3189
04f7d5b9
PH
319077. The use of log_message on a "discard" ACL verb, which is supposed to add to
3191 the log message when discard triggers, was not working for the DATA ACL or
3192 for the non-SMTP ACL.
3193
bc60667e
PH
319478. Error message wording change in sieve.c.
3195
bb6e88ff
PH
319679. If smtp_accept_max_per_host was set, the number of connections could be
3197 restricted to fewer than expected, because the daemon was trying to set up
3198 a new connection before checking whether the processes handling previous
3199 connections had finished. The check for completed processes is now done
3200 earlier. On busy systems, this bug wouldn't be noticed because something
3201 else would have woken the daemon, and it would have reaped the completed
3202 process earlier.
3203
1e70f85b
PH
320480. If a message was submitted locally by a user whose login name contained one
3205 or more spaces (ugh!), the spool file that Exim wrote was not re-readable.
3206 It caused a spool format error. I have fixed the spool reading code. A
3207 related problem was that the "from" clause in the Received: line became
3208 illegal because of the space(s). It is now covered by ${quote_local_part.
3209
321081. Included the latest eximstats from Steve (adds average sizes to HTML Top
3211 tables).
3212
4e01f9d6
PH
321382. Updated OS/Makefile-AIX as per message from Mike Meredith.
3214
1ee1cef2
PH
321583. Patch from Sieve maintainer to fix unterminated string problem in
3216 "vacation" handling.
3217
6e2b4ccc
PH
321884. Some minor changes to the Linux configuration files to help with other
3219 OS variants using glibc.
3220
8e669ac1
PH
322185. One more patch for Sieve to update vacation handling to latest spec.
3222
495ae4b0 3223
bbe902f0
PH
3224----------------------------------------------------
3225See the note above about the 4.44 and 4.50 releases.
3226----------------------------------------------------
3227
3228
3229Exim version 4.44
3230-----------------
3231
3232 1. Change 4.43/35 introduced a bug that caused file counts to be
3233 incorrectly computed when quota_filecount was set in an appendfile
3234 transport
3235
3236 2. Closing a stable door: arrange to panic-die if setitimer() ever fails. The
3237 bug fixed in 4.43/37 would have been diagnosed quickly if this had been in
3238 place.
3239
3240 3. Give more explanation in the error message when the command for a transport
3241 filter fails to execute.
3242
3243 4. There are several places where Exim runs a non-Exim command in a
3244 subprocess. The SIGUSR1 signal should be disabled for these processes. This
3245 was being done only for the command run by the queryprogram router. It is
3246 now done for all such subprocesses. The other cases are: ${run, transport
3247 filters, and the commands run by the lmtp and pipe transports.
3248
3249 5. Some older OS have a limit of 256 on the maximum number of file
3250 descriptors. Exim was using setrlimit() to set 1000 as a large value
3251 unlikely to be exceeded. Change 4.43/17 caused a lot of logging on these
3252 systems. I've change it so that if it can't get 1000, it tries for 256.
3253
3254 6. "control=submission" was allowed, but had no effect, in a DATA ACL. This
3255 was an oversight, and furthermore, ever since the addition of extra
3256 controls (e.g. 4.43/32), the checks on when to allow different forms of
3257 "control" were broken. There should now be diagnostics for all cases when a
3258 control that does not make sense is encountered.
3259
3260 7. $recipients is now available in the predata ACL (oversight).
3261
3262 8. Tidy the search cache before the fork to do a delivery from a message
3263 received from the command line. Otherwise the child will trigger a lookup
3264 failure and thereby defer the delivery if it tries to use (for example) a
3265 cached ldap connection that the parent has called unbind on.
3266
3267 9. If verify=recipient was followed by verify=sender in a RCPT ACL, the value
3268 of $address_data from the recipient verification was clobbered by the
3269 sender verification.
3270
327110. If FIXED_NEVER_USERS was defined, but empty, Exim was assuming the uid 0
3272 was its contents. (It was OK if the option was not defined at all.)
3273
327411. A "Completed" log line is now written for messages that are removed from
3275 the spool by the -Mrm option.
3276
327712. $host_address is now set to the target address during the checking of
3278 ignore_target_hosts.
3279
328013. When checking ignore_target_hosts for an ipliteral router, no host name was
3281 being passed; this would have caused $sender_host_name to have been used if
3282 matching the list had actually called for a host name (not very likely,
3283 since this list is usually IP addresses). A host name is now passed as
3284 "[x.x.x.x]".
3285
328614. Changed the calls that set up the SIGCHLD handler in the daemon to use the
3287 code that specifies a non-restarting handler (typically sigaction() in
3288 modern systems) in an attempt to fix a rare and obscure crash bug.
3289
329015. Narrowed the window for a race in the daemon that could cause it to ignore
3291 SIGCHLD signals. This is not a major problem, because they are used only to
3292 wake it up if nothing else does.
3293
329416. A malformed maildirsize file could cause Exim to calculate negative values
3295 for the mailbox size or file count. Odd effects could occur as a result.
3296 The maildirsize information is now recalculated if the size or filecount
3297 end up negative.
3298
329917. Added HAVE_SYS_STATVFS_H to the os.h file for Linux, as it has had this
3300 support for a long time. Removed HAVE_SYS_VFS_H.
3301
ea3a6f44 330218. Updated exipick to current release from John Jetmore.
bbe902f0
PH
3303
330419. Allow an empty sender to be matched against a lookup in an address list.
3305 Previously the only cases considered were a regular expression, or an
3306 empty pattern.
3307
330820. Exim went into a mad DNS lookup loop when doing a callout where the
3309 host was specified on the transport, if the DNS lookup yielded more than
3310 one IP address.
3311
ea3a6f44
NM
331221. The RFC2047 encoding function was originally intended for short strings
3313 such as real names; it was not keeping to the 75-character limit for
3314 encoded words that the RFC imposes. It now respects the limit, and
3315 generates multiple encoded words if necessary. To be on the safe side, I
3316 have increased the buffer size for the ${rfc2047: expansion operator from
3317 1024 to 2048 bytes.
bbe902f0 3318
ea3a6f44
NM
331922. Failure to deliver a bounce message always caused it to be frozen, even if
3320 there was an errors_to setting on the router. The errors_to setting is now
3321 respected.
bbe902f0
PH
3322
332323. If an IPv6 address is given for -bh or -bhc, it is now converted to the
3324 canonical form (fully expanded) before being placed in
3325 $sender_host_address.
3326
332724. Updated eximstats to version 1.33
3328
ea3a6f44
NM
332925. Include certificate and key file names in error message when GnuTLS fails
3330 to set them up, because the GnuTLS error message doesn't include the name
3331 of the failing file when there is a problem reading it.
bbe902f0
PH
3332
333326. Expand error message when OpenSSL has problems setting up cert/key files.
ea3a6f44 3334 As per change 25.
bbe902f0 3335
ea3a6f44
NM
333627. Reset the locale to "C" after calling embedded Perl, in case it was changed
3337 (this can affect the format of dates).
bbe902f0 3338
ea3a6f44
NM
333928. exim_tidydb, when checking for the continued existence of a message for
3340 which it has found a message-specific retry record, was not finding
3341 messages that were in split spool directories. Consequently, it was
3342 deleting retry records that should have stayed in existence.
bbe902f0
PH
3343
334429. eximstats updated to version 1.35
3345 1.34 - allow eximstats to parse syslog lines as well as mainlog lines
3346 1.35 - bugfix such that pie charts by volume are generated correctly
3347
ea3a6f44
NM
334830. The SPA authentication driver was not abandoning authentication and moving
3349 on to the next authenticator when an expansion was forced to fail,
3350 contradicting the general specification for all authenticators. Instead it
3351 was generating a temporary error. It now behaves as specified.
bbe902f0 3352
ea3a6f44
NM
335331. The default ordering of permitted cipher suites for GnuTLS was pessimal
3354 (the order specifies the preference for clients). The order is now AES256,
3355 AES128, 3DES, ARCFOUR128.
bbe902f0 3356
ea3a6f44
NM
335731. Small patch to Sieve code - explicitly set From: when generating an
3358 autoreply.
bbe902f0 3359
ea3a6f44
NM
336032. Exim crashed if a remote delivery caused a very long error message to be
3361 recorded - for instance if somebody sent an entire SpamAssassin report back
3362 as a large number of 550 error lines. This bug was coincidentally fixed by
3363 increasing the size of one of Exim's internal buffers (big_buffer) that
3364 happened as part of the Exiscan merge. However, to be on the safe side, I
3365 have made the code more robust (and fixed the comments that describe what
3366 is going on).
bbe902f0 3367
ea3a6f44
NM
336833. Some experimental protocols are using DNS PTR records for new purposes. The
3369 keys for these records are domain names, not reversed IP addresses. The
3370 dnsdb PTR lookup now tests whether its key is an IP address. If not, it
3371 leaves it alone. Component reversal etc. now happens only for IP addresses.
bbe902f0
PH
3372 CAN-2005-0021
3373
ea3a6f44
NM
337434. The host_aton() function is supposed to be passed a string that is known
3375 to be a valid IP address. However, in the case of IPv6 addresses, it was
3376 not checking this. This is a hostage to fortune. Exim now panics and dies
3377 if the condition is not met. A case was found where this could be provoked
3378 from a dnsdb PTR lookup with an IPv6 address that had more than 8
3379 components; fortuitously, this particular loophole had already been fixed
3380 by change 4.50/55 or 4.44/33 above.
3381
3382 If there are any other similar loopholes, the new check in host_aton()
3383 itself should stop them being exploited. The report I received stated that
3384 data on the command line could provoke the exploit when Exim was running as
3385 exim, but did not say which command line option was involved. All I could
3386 find was the use of -be with a bad dnsdb PTR lookup, and in that case it is
3387 running as the user.
bbe902f0
PH
3388 CAN-2005-0021
3389
ea3a6f44
NM
339035. There was a buffer overflow vulnerability in the SPA authentication code
3391 (which came originally from the Samba project). I have added a test to the
3392 spa_base64_to_bits() function which I hope fixes it.
bbe902f0
PH
3393 CAN-2005-0022
3394
ea3a6f44
NM
339536. The daemon start-up calls getloadavg() while still root for those OS that
3396 need the first call to be done as root, but it missed one case: when
3397 deliver_queue_load_max is set with deliver_drop_privilege. This is
3398 necessary for the benefit of the queue runner, because there is no re-exec
3399 when deliver_drop_privilege is set.
bbe902f0 3400
ea3a6f44
NM
340137. Caching of lookup data for "hosts =" ACL conditions, when a named host list
3402 was in use, was not putting the data itself into the right store pool;
3403 consequently, it could be overwritten for a subsequent message in the same
3404 SMTP connection. (Fix 4.40/11 dealt with the non-cache case, but overlooked
3405 the caching.)
bbe902f0 3406
ea3a6f44
NM
340738. Sometimes the final signoff response after QUIT could fail to get
3408 transmitted in the non-TLS case. Testing !tls_active instead of tls_active
3409 < 0 before doing a fflush(). This bug looks as though it goes back to the
3410 introduction of TLS in release 3.20, but "sometimes" must have been rare
3411 because the tests only now provoked it.
bbe902f0
PH
3412
3413
495ae4b0
PH
3414Exim version 4.43